Velocity is a vector. A vector has a magnitude and a direction. The scalar or magnitude portion of velocity is speed. Velocity is a constant only when both the speed and direction are not varying. Hence, when the speed is changing, the velocity cannot be a constant.
Yes. In order for an object's velocity to be constant, its speed and direction of motion must both be constant. An object moving in a circle, for example, has varying velocity, even if its speed is constant. This situation is known as "uniform circular motion," and the acceleration in this case is called "centripetal [center-seeking] acceleration."
Yes. Velocity is a quantity that has both magnitude and direction. Speed is the magnitude of velocity. If speed is constant but the direction is changing, then the velocity is changing. An example is a car turning a corner without slowing down.
Yes. An object moving at constant velocity has zero acceleration. The constant velocity van be any constant including zero velocity. Mathematics acceleration a=dv/dt = 0. Solving this gives v = constant.
If the net force on an object is zero, then velocity of the object is constant ... it moves in a straight line at a constant speed.
Such and object is said to be in equilibrium. No acceleration and no force.
it is in equilibrium.
no
Yes, for example, if it moves in a circle.
Yes. Velocity is a quantity that has both magnitude and direction. Speed is the magnitude of velocity. If speed is constant but the direction is changing, then the velocity is changing. An example is a car turning a corner without slowing down.
because it stays the same
No. An object traveling at a constant velocity is not accelerating.
Yes. An object moving in a straight line at constant speed has constant velocity.
Velocity can change even if speed is constant.
a "body" "moving body" an "object" is moving with constant velocity. [OR] a "body" is moving with constant velocity.
The velocity increases at a constant rate.
No, it isn't possible. Velocity specifies both speed and direction; if velocity doesn't change, that means that neither the speed nor the direction change.
no
No. The definition of acceleration is the change in an object's velocity over time. Acceleration must then be zero since velocity remains constant.