Question

GIVE AN EXAMPLE WHERE THE VELOCITY OF AN OBJECT IS ZERO BUT ACCELERATION IS NOT ZERO??​

Answer 1

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(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.

Answer 2

Explanation:

1. When we start a car from rest initial velocity is zero but acceleration is not. 2. When we throw a ball vertically upwards, at max height velocity is zero but acceleration due to gravity is acting.