Assertion: A body having non zero acceleration can have a constant velocity.
Reason: Acceleration is the rate of change of velocity.

Options

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

Answer

C

Explanation

As per definition, acceleration is the rate of change of velocity, i.e., `vec a = (d vec v)/(dt)`.
If velocity is constant `(d vec v)/(dt) = 0 :. vec a = 0`.
Therefore, if a body has constant velocity it cannot have non-zero acceleration.