Asked Jan 6, 2020

The instantaneous velocity of particle is zero. Does it mean that is acceleration is zero?


Expert Answer

The instantaneous velocity of a particle is zero, that does not mean that the acceleration of the particle is zero too. A body can be momentarily at rest even if it is under constant acceleration. 

For example:

When a body is thrown with some velocity, opposite to the direction of a constant force, then the force will try to stop the motion of the body. Hence, after a certain amount of time, the body will stop. But as the force is constant, so the acceleration of the body will not be zero. Hence, at the moment whe...

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