Question

Asseration : In circular motion work done by all the forces acting on the body is zero.
Reason : Centripetal force and veloity are mutually perpendicular.
A. If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.
B. If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
C. If Assertion is true, but the Reason is false
D. If Assertion is false but the Reason is true.

Answer 1

Correct Answer - D
In non-uniform circular motion (when speed constant) work done by all the forces is zero.