1. Tardigrade
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  4. Assertion: A particle may be momentarily at rest and yet have non-zero acceleration. Reason: The zero velocity of a particle at any instant does not necessarily imply zero acceleration at that instant.

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Q. Assertion : A particle may be momentarily at rest and yet have non-zero acceleration.
Reason : The zero velocity of a particle at any instant does not necessarily imply zero acceleration at that instant.

Motion in a Straight Line

Solution:

A particle may be momentarily at rest and yet have non-zero acceleration. For example, a particle thrown up has zero velocity at its uppermost point but the acceleration at that instant continues to be the acceleration due to gravity.