1.

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.A. If both assertion and reason are trure and reason is the correct explanation of assertion.B. If both assertion and reason are true but reason is not the correct explanations of assertion.C. If assertion is true but reason is false.D. If both assertion and reason is false

Answer» Correct Answer - (a)
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.


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