Question

(a) In a uniform circular motion.

(i) Velocity and acceleration remains constant.
(ii) Velocity is constant but acceleration changes.
(iii) acceleration is constant, Velocity changes.
(iv) both Velocity and acceleration changes,​

Answer 1

Answer:

No, the velocity of a body in uniform circular motion is not constant. That's because it is a vector, and that means it has both magnitude (speed) and direction. As the direction is constantly changing, then the velocity is changing too, even though speed remains constant.