Question

how can be velocity changed ? Give one example of each case​

Answer 1

Yes, it is possible for a body to have constant speed as well as variable velocity.

• A body moving on a circular path with constant speed that is undergoing a uniform circular motion has variable velocity. The direction of velocity changes each moment and hence the velocity is not constant.

Answer 2

Answer:

Velocity can be changed by acceleration or deacceleration.

Explanation:

For example you're walking with a constant velocity, say x meters/sec. You can increase it by walking faster, say 2x meters/sec.

another example: You can walk slower by let's say 1/x m/s.