Question

Define uniform circular motion and give an example of it.why is it called accelerated motion

Answer 1

when an object moves in a circular track/path with uniform speed,it's motion is called uniform circular motion.
example-if the athlete moves with a velocity of constant magnitude along the circular path,the only change in his velocity is due to the change in the direction of the motion

Answer 2

"Uniform circular motion:

"Uniform circular motion" is the "motion of an object" when it is moving in a "circular path".

Examples : Revolution of earth around the sun, Walking on a circular track.

"Uniform circular motion" is accelerated motion because accelerated "motion occurs when" an object change it's speed or direction and in the circular motion, the object changes it's direction continuously "until it comes" to rest, so it's Accelerated.

So, the acceleration must be in a uniform value to keep the motion uniform."