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Answered 2012-07-19 01:11:46

No. If the speed varies, the body accelerates, and velocity cannot be constant.

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No. Velocity is speed and direction. If you change either variable, the velocity will no longer be constant.


No, because constant velocity means constant speed and constant direction


Yes. Velocity is rate (or speed) in a given direction. If you change your direction but not your rate (or speed) then you have changed your velocity without changing speed.


Yes, velocity involves speed and direction. So if the direction and the speed change at a certain rate, the velocity could stay the same.


Yes, if you are going in a circle or otherwise changing direction.


Of course. In fact, in order to have constant velocity, it must have constant speed.What you really want to know: Can a body have changing velocity when it has constant speed ?The answer to that one is also "yes", for example when it is moving in a circle, the speed is constant but the velocity is changing all the time (in direction).


No, not at all possible. But constant speed with changing velocity is possible.


No. A body with constant velocity is either stationary or going at constant speed in a constant direction. The usual interpretation of speed and velocity goes like this. A velocity is a vector with magnitude and direction. The magnitude is usually called its speed. Changing a speed must change the length of the vector and changing the length of the velocity vector has to change the velocity.


No. A body can have constant speed but changing direction thus changing velocity. For example, an orbiting body may have a constant speed s=wr, but its direction is constantly changing as it follows the curve of its orbit.


"Velocity" means the speed of the object and the direction in which it's moving.If the direction changes, then the velocity has changed, even though the speedmay be constant.


No. The linear velocity can never be equal when speed is constant. This is because direction is changing and therefore linear velocity changes.


the question is very simple.no a body does not have acceleration when it is moving with constant velocity ,because a body posses acceleration when its velocity is not remain conserved or constant.yes if a body have constant speed it may have acceleration but not in case of constant velocity.


No. "Velocity" means the speed and direction of motion. If either of them is changing, then velocity isn't constant. (By the way, that's what "acceleration" means: Any change in velocity.)


No, in order for the velocity to be constant, the speed has to be constant. Speed is a scalar, meaning that it is just a number. (A car goes 50 miles per hour). Velocity is a vector, which indicates that it needs a measure of its displacement and a direction. (A car is going 50 mph to the east). A body can have a constant speed but a changing velocity because the direction can change while the speed is constant. (A car goes 50 mph around a roundabout). However, a body can not have a constant velocity with a changing speed. A car can not be slowing down yet still be going the same speed and direction.


No. Speed is the magnitude of velocity. If the speed varies, so will the velocity, even if you are moving in a uniform direction.


constant velocity means no acceleration. An object can be moving at constant speed, like a satellite in orbit, but its velocity is changing because direction is changing


I think a body in uniform circular motion can have a constant speed, but variable velocity. Since this body is in circular motion, it changes it's direction. Thus having a variable velocity.


Speed is a scalar quantity while velocity is a vector quantity.It is possible that an object can have constant speed but if speed is constant while direction of motion is changing constantly then it means that body has variable velocity.An example of this phenomena is a body moving in a circle whose speed is constant but velocity is changing every instant due to change in direction at every instant.



No. The definition of acceleration is a change in velocity, i.e. speed and/or direction. So constant velocity means zero acceleration.


Uniform circular motion. The speed is constant but the direction thus the velocity is variable.


The speed can be constant but the velocity can't, because the directionof motion ... which is a component of velocity ... is changing. Also the velocity of a moving body changes when its speed changes but remains moving towards the same direction ... :) :]


No. Since the object's direction changes all the time, it follows that its velocity is not constant. Its speed, on the other hand, may or may not be constant.


Yes. If a body has a constant velocity there is no acceleration, but if the velocity is changing there is acceleration present.


Yes. Velocity includes the direction of the motion. If the direction changes, then that meansthe velocity changes, even if the speed is constant.Anything rotating at constant speed in a closed path has constantly-changing velocity.Like a point on a phonograph record, a point on a hard disk drive, or an orbiting TV satellite.



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