Assertion: Centripetal acceleration is always direction towards the centre of rotation of an object undergoing uniform circular motion
Reason: Centripetal acceleration is a constant vector

Options

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

Answer

c

Explanation

Centripetal accleration `=(v^(2))/R`
For uniform circular motion, v and R are constant, the magnitude of the centripetal acceleration is constants. But the direction change-pointing always towards the centre. Therefore, a centripetal acceleration is not a constant vector.