Question

give an example in which the velocity is zero but acceleration is non zero​

Answer 1

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Examples which shows that the velocity is zero but acceleration is non-zero is as follows :

i) When we hold a ball and then when we released it, velocity remain zero but non-zero acceleration occurs.

ii) When we throw a stone upwards in straight direction, velocity remains zero with non-zero acceleration.

iii) When a car or any vehicle starts moving from rest position.

iv) An important example of this case is the oscillating simple pendulum.