# Can you have zero velocity and nonzero average acceleration? zero velocity and nonzero acceleration? please give example.

Ashwin
41 Points
9 years ago
Yes it is possible. A ball thrown in air is a perfect example.accleration of ball is always g but at the highest point velocity is zero.

Also a car starting from rest has zero velocity but non zero acceleration. if it had zero acceleration it would never begin to move.

Ball one can be explained as above –
To explain, say that u throw a ball at velocity V upwards , the earth's acceleration is -G. consider T=0 at the moment of throwing. V+(-G)T is the velocity of the ball at any instant T (after throwing). At the time T=V/(+G) *we have the ball's velocity 0 but the ball persistently has -G acceleration* all along duration of flight until it hits ground . *Its because the object has (-G) acceleration even at velocity 0 that the ball starts falling and finally comes down to hit the ground*.
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