Question

the radial velocity of a particle in motion is zero then the path of the particle is​

Answer 1

(a) At the top most point when a particle is thrown vertically upward, v=0 and a=−g.

(b) When a body is thrown up, then while going up, velocity is upward but the acceleration is vertically downward.

(c) When a body is moving on a circular path with uniform speed, then its velocity is tangential and the acceleration is radial( centripetal acceleration). That is velocity is normal to acceleration.