Question

Assertion : Centripetal force does no work.
Reason : Force and displacement are perpendicular to each other.

• A. If both A and 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 Assertion is false but Reason is true

Answer 1

Answer: (A)

Since centripetal force is perpendicular to the displacement of the body, work done is zero as
$W=\vec{F}.\vec{d}=Fd\cos \theta$