Question

Explain why the direction of the velocity of a body changes travelling in a circular track

Answer 1

Answer:

Since the body describes circular motion, its distance from the axis of rotation remains constant at all times. ... This changing velocity indicates the presence of an acceleration; this centripetal acceleration is of constant magnitude and directed at all times towards the axis of rotation.

Answer 2

As the object moves through the circular path it is constantly changing direction, and therefore accelerating—causing constant force to be acting on the object. This centripetal force acts toward the center of curvature, toward the axis of rotation.