Question

Without centripetal force, a body cannot move on a circular path. Why? ​

Answer 1

Answer-

In uniform circular motion, only the direction of the velocity is changing, because the force is at right angles to the movement. Since the speed (i.e. the magnitude of the velocity) is constant, no work is being done and the energy remains constant.

Answer 2

Because as the body is moving in a circular path,it is countinuously changing the direction of motion.Thus the motion of the body is accelerated motion.According to Newton's law of motion,an accelerating body must be acted upon by an unbalanced force.For uniform circular motion,the net force and the subsequent acceleration is directed inwards.

So,a body cannot move in a circular path without a centripetal force.