Monday, February 7, 2011

Velocity vs. Speed

How can two objects have the same speed but different velocities? Explain how this is possible and provide an example of your own. Check your spelling and grammar.

59 comments:

  1. Speed refers to "how fast an object is moving." A fast-moving object has a high speed and covers a large distance in a short amount of time. A slow-moving object has a low speed and covers a small amount of distance in the same amount of time.

    Velocity is a vector that tells "the rate at which an object changes its position." Imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. Even though this is alot of activity and speed ,it would result in a zero velocity. Because the person always returns to the original position, the motion would never result in a change in position. Since velocity is defined as the rate at which the position changes, this motion results in zero velocity.

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  2. Two objects can have the same speed but different velocities, because velocity is speed in a specific direction, so even if they have the same speed they could still be in different directions. An example would be two bicycles riding at the same speed, but they are riding in different directions.

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  3. Velocity can have same speed but different velocities because ,velocity is a specific direction.An example of this is two people on bikes are going the same speed but different directions.

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  4. Colin Hanuscin !!!!!!!!!!!!!!!!!!!!!!!!!!! :D :b :$February 7, 2011 at 7:33 PM

    It is possible for two objects to have the same speed but not the same velocity because if the two objects are going in opposite directions they have different velocities. If two runners run at the same speed in opposite directions they will have different velocity.

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  5. This is possible because they would have the same speed but they would be going in different directions. Velocity is speed in a specific direction. An example would be two cows grazing in the grass. They would be walking at the same speed, but in different directions.

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  6. Two objects can have the same speeds but different velocities because the two objects could be going the same speed but one could be going North and one could be going South in different directions. An example might be two ants could be walking on a branch and have the same speed but be going in different directions so they would have different velocities because they are going in different directions.

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  7. Speed is how fast something is moving. Velocity is the speed and the direction of an object. One thing can have a different velocity than another because one car can be going 3 mph south and another car can be going 3 mph north.

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  8. Two objects can have the same speed and different velocities because if 2 objects are moving at the same pace, they have the same speed. If the same objects are moving in oppossite dirctions, but still have the same speed, they'll have the same speed and different velocities. This is possible because if 2 cars are driving down the road, with the same speed, but they are driving in opposite directions they have different velocities, but the same speed.

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  9. It is possible for two objects to have the same speed, but different velocities. This is possible if the objects are going different direction. There are three possible ways to change an object's velocity (this is acceleration): The object can speed up, slow down, or change direction. In this case the object is going a different direction than the other object and because of this they have different velocities. Pretend a red car and a yellow car have the same speed, but are going different directions. Since this is happening, they have different velocities, even though they have the same speed. If the red car or the yellow car were to go the same direction as the other, then they would have the same velocity.

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  10. Two objects can have the same speed but different velocities because velocity is when you have the same speed in a specific direction. If there are two trains and they are both going the same speed but different directions they do not have the same velocities. The way they can have the same velocities is when the trains are going the same speed and the same direction.

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  11. Two objects can have the same speed but different velocities. This is possible because velocity includes both speed and direction. So if two objects, let’s say buses, have the same speed at 50 miles per hour, but one is going Northwest and the other is heading South, they would have the same speed but different velocities. Another result of the fact that velocity includes both speed and direction is that if you change your speed, you change your velocity.

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  12. Two objects can have the same speed but different velocities because of their direction. Your velocity would be different because velocity changes as speed or direction changes. An example would be two runners. One runner could be running 50 km. north. The other could be running 50 km. south. Their velocities are different. They are different because of their direction.

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  13. Yes, two objects might be moving at 20 km/h, but if they are going in opposite directions, they have different velocities.Think of a number line. The larger numbers are to the right and the smaller number to the left. For instance, five is less than seven. (5 < 7). When you multiply by a negative number, then the number with the larger absolute value is on the left.

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  14. Yes! Two objects can have the same speed but different velocities because velocities involve direction. Speed does not. An example of speed is a car driving 30 m/s. An example of velocity is a car driving 30 m/s west. Many people think they are the same, but they aren't.

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  15. Two objects can have the same speed but different velocities because velocity is speed in a specific direction, so if two bicycles are riding at the same speed but in opposite paths, they will have the same exact speed, but different velocities.

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  16. To objects can have the same speed but different velocities because speed is a measure of how fast position changes with time and velocity is speed in a specific direction. So two objects can have the same speed but different velocities because to measure speed you need to know both the distance and time but for velocity you need to know the speed and direction. This means two objects can have the same speed but different velocities because to measure velocity you need to know the direction of an object but for speed you don’t measure the direction. An example would be if two trains were going both 30 meters per sec. But going in opposite directions the trains have the same speeds but different velocities because the trains are going in opposite directions.

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  17. Two items can have the same speed but different velocities by two things moving at the same speed but moving in a different directions. This is possible because things can move in opposite directions. Ex. Two llamas are running at 10 mph, but in different directions. One is running North, and one is running South.

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  18. Two objects can have the same speed but different velocities. That is because velocity is speed in a specific direction, while speed is the how fast an object moves. Two cars may be driving down the road and one car may be going east and going 45 mph, and the other car going west 45 mph. The velocities are different because they are going different directions.

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  19. Two objects can have the same speed but different velocities because velocity is speed in a specific direction. The thing that causes the change in velocity is the difference is which way the objects are traveling. That is how two objects can have the same speed but different velocities. An example of this is one person biking northward at 8 miles an hour while another person is biking southward at 8 miles an hour.

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  20. It is possible for two objects to have the same speed but different velocities because velocity measures everything that speed measures, but the difference is that velocity also measures direction. If two cars were on the road, going forty miles per hour they would have the same speed. Although, if one car was going north, and one car was going south, that would mean that the cars would be going different dirctions, resulting in them having different velocities as well. An example of velocity is a vector.

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  21. Two objects can have the same speed but different velocities if the objects have the same speed but are going in opposite directions. This is possible because of this. Say there are two runners, Gaby and Erin. They are running at the same time with the same speed but one is running north and the other one is running south. They will have the same speed but different velocities.

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  22. If 2 objects have the same speed but different velocities, they would both have the same speed but different directions. Speed and velocity are not the same. For example, 2 runners run at the same speed but in opposite directions, they would have the same speed but different velocities. One runner was running one way, and the other runner was running the other way. Velocity changes if either speed or direction changes.

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  23. Speed and velocity are NOT the same. It is possible for two objects to have the same speed but different velocities. Velocity is considered a vector, and has a specific direction, while speed does not. An example would be if two people are riding their bikes at the exact same speed but in opposite directions, they will have the same speed, but different velocities.

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  24. People can be going different ways but they can be going the same speed. If a train was going south and another was going north, they could still be going the same speed but just different directions. Velocity means to go a speed in a specific direction.

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  25. It is possible for two objects the same speed but velocity because if two runners are running at the same speed in opposite direction, they will have the same speed but different velocities. My example is; Two balls are rolling down the hill at the same speed but on opposite sides of the hill. This an example of velocity.

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  26. Two objects can have the same speed but different velocities because velocity contains both speed and direction. Two objects can have the same speed, but if their direction is different, than their velocities are different. For example, two school buses travel at the same speed, but they travel in different directions. Since velocity contains both speed and direction, the buses’ velocities are different.

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  27. It is possible for 2 objects have the same speed but different velocities by my example. My example is:
    If you see one train going to the left, and another train going to the right, it is possible for them to be going opposite direction but the same speed.One train could be going to New York and the other could be going to Wyoming. The train going to New York would get there first because of the location. New York is closer to Bensalem then Wyoming is, but they could be going the same speed.

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  28. Well, velocity is speed in a specific direction.
    So, this is possible because two people can go the same speed, but their velocity is different if they go in different directions. An example is there are two runners. They are both running at the same speed. Their velocity changes when one runner turns left.

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  29. Well velocity is both speed and direction but speed on the other hand has only speed not direction.Say that two runners are running the same speed but in a different direction there speed is the same but there velocity is different.

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  30. Two objects can have the same speed, but different velocities. The objects could be moving at the same speed, but in different directions. For example, if two cars are going the same speed, but in opposite directions their speed is the same, but their velocities are different.

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  31. It is possible for two objects to have the same speed but different velocities because if two people are walking at the same speed but in opposite directions. If they still walk at the same speed, they are walking in different directions. For example if there were two people riding a bike and they both have the same speed and they go in different directions, they still have the same velocity.

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  32. I think what you're asking is, "Can an object have a constant speed while having a changing velocity?
    The answer is yes. Any time an object's direction changes, its velocity technically changes, even if it keeps the same speed. So for an example, a car driving at a constant 50 mph along a winding road is changing its velocity (because of the curves); but its speed is a constant 50 mph.

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  33. Two objects can have the same speed but different velocities by simply having different directions. An example of this is two trains, one going south at 30km and one going north at 30km. These trains have the same speed but different velocities because of direction.

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  34. Two objects can have the same speed, but different velocities because if they have a different direction the velocities will change. This is possible because velocity is teh measure of speed and direction while speed is the measure of how fast an object is moving. So, two objects and have the same speed, but different directions. This will changs the velocities of both objects. For example, if two trains are on a track, both going 75 miles per hour, but one isi going north and one is going south. The speed is the same between these two objects, but the velocities are different.

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  35. Two objects can go the same MPH, But they can go two different directions at the same time. This is possible because there could be a speed limit on a highway and both sides of the highway have to follow this rule, So all the cars that are going North can go the same speed limit as the people going South. An example of this is when you are in your car and you are in a school area. There is a 15 MPH sign and there are cars that are going North in the school area at 15 MPH and there are people in cars going South at 15 MPH. if you are wondering what MPH means, It means "Miles per hour"

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  36. Alexander BojakowskiFebruary 8, 2011 at 7:55 PM

    Two objects can have the same speed but different velocities because two people could be going at the same rate of speed but they could be walking in different directions. This can be possible because the one person could be walking to the kitchen while the other is walking to the restroom.

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  37. Two objects can have the same speed but different velocities because speed does not have direction but velocity has specific direction. This is possible because speed is a measure of how fast something moves or the distance it moves and velocity is the specific direction and speed. An example is if two trains were moving at the same speed but opposite direction it will have the same speed but different velocities.

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  38. They can have the same speed but not the same velocities because one object could be traveling South while the other object can be going North. Therefore, they don't have the same velocities. You can tell they don't have the same velocities because velocity measures speed and direction.

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  39. Two objects can have the same speed but different velocities because if two trains are going 30m/h they have same speed but one train could be going north and the other train going south this means the trains have different velocities because they are going in different directions.

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  40. Two objects can have the same speed but different velocities. Speed is the measure of how fast something moves or the distance it moves. Velocity is speed in a certain direction. For example two soccer balls can have the same speed, but different velocities. If one ball is kicked 5 mph towards one goal, and another ball is kicked 5 mph going to the opposite goal, they have the same speed, but different velocities.

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  41. Two objects can have the same speed but different velocities because one of the objects can have a different direction. An example of a different direction is two kids are running down the street. They are going to the candy store, one girl goes a shorter way and goes left other then going straight. Another example could be about two cars going down the street. The difference is that on car makes a turn. To remember that objects can have the same speed but different velocities is to make sure that the two objects are going the different directions.

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  42. Two objects can have the same speed but different velocities because speed is just speed. Velocity is speed AND direction. They can both go the same speed but don't have to go the same direction. An example of this is two kids are going to WaWa. They are both going 3 m/s. The first kid goes straight, but the second kid turns. As soon as the second kid turned, velocity changed.

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  43. Two objects can have the same speed but different velocities because velocity is speed in a specific direction and speed is the measure of how fast something moves or the distance it moves in a given amount of time. This is possible because to measure speed you need the distance and the time but when measuring velocity you need speed and direction. This is how it is possible. An example of this is say two basketball players are running down the court at the same speed but one is running south and one is running north. If they were going the same way they would have the same velocity but they are running the in different direction so they do not have the same velocities.

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  44. You can have the same speed but different velocties because when they go in oppisite direction they dont have them dicrection. and here is the example. If 2 joggers are jogging at the same speed but different velocities.

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  45. Two objects can have the same speed but different velocities because both objects can be going the same exact speed, but they can be traveling in different directions. For example, one jogger could be jogging with another. As they come across the street one jogger turns left as the other stays straight (remember that they have the same same speed). Both of the runners velocites changed.

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  46. Two objects can have same speeds but different velocitys because if one object is moving in a different direction than the other than it would have a different velocity. For example if one car was moving south and another was moving north, the cars would have different velocities because they are moving in different velocities.

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  47. Two objects can have the same speed but different velocities because with speed it doesn’t matter what way you go but it does in velocity. As an example if two classmates were racing and going in opposite directions but the same speed they would be going in different velocities.

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  48. Two objects can have the same speed but different velocities because one of the objects can have a diffrent location. An example is a race between two boys. One is wearing a yellow shirt, while the other one is wearing yellow. The race starts and the boy in black starts straight out while the boy in yellow hits alot of corners. Then, the boy in black hits corners while the boy in yellow goes straight. Then the boy is black wins because they went the same direction, but in opposite ways.

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  49. Two objects can have the same speed but different velocities, an example is: if two cars are going at 40 meters an hour they have the same speed. If one car is going south and the other car is going north they do not have the same velocity. Velocity depends on the direction and the speed.

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  50. Two objects can have the same speed but different velocity by one moving in one direction and one in another.An example of this is Dwight Freeney runs at the same speed as the running back but Dwight is running north and the running back is running south.

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  51. Two objects could have speed but different velocities because of their direction. For example, if two cows were grazing in the grass at the same speed but different directions, they would not have the same velocity. However, they would have the same speed. This is possible.

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  52. Two objects can have the same speed and different velocity because they could be moving in different directions but moving at the same pace. For example if two cars are moving at the same speed but in different directions those cars have different velocitys because they are not moving in the same direction.

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  53. I think that two objects can have different velocities, but the same because perhaps they're going different directions. Velocity is speed with a direction, and while the two objects could have the same speed, they could have a different direction. Two objects can't have the same velocity if going different directions. For example, let's say there are 2 cars. One car could go 4 m/s north, the other 4m/s SOUTH. They have different velocities because of direction.

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  54. One biker can be going north the other biker can be going south. But the first biker can be going at a speed of 5 miles per hour while the second biker is going at a speed of 5 miles per hour. They are going the same speed but different velocities.

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  55. It is possible for two objects to have the same speed but different velocities. An example, two cars drive at 40 miles per hour but one car drives north and other car drives south they will have the same speed but different velocities.

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  56. Speed is a measure of how fast something moves or the distance it moves in a certain amount of time. Velocity is a speed in a specific direction. Because velocity includes direction, it is possible for two objects to have the same speed but different velocities. An exmaple of this would be if two trains were traveling at 100 mph and one train is going north and one is going south. They have the same speed but different velocities.

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  57. Velocity is speed in a specific direction. If the speeds are the same the directions can be different. If a train goes 30 miles per hour along with another train going 30 miles per hour but in a different direction, the two trains have 2 different directions.

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  58. Two objects can have the same speed but different velocities if for example Shane Victorino was running north towards second base at 22 mph and Jimmy Rollins was running 22 mph towards second base but going south.

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  59. Two objcts can have different velocities but the same speed because they have different directions. Velocity needs both speed and direction. If two cars are going 3 m/s but different directions, they have different velocities.

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