Assertion (A) : A person standing on a rotating platform suddenly stretches his arms,…
PHYSICS · Subjective · AP · Physics 1: Algebra-based · Energy and Momentum of Rotating Systems · Energy and Momentum of Rotating Systems
Problem
Assertion (A) : A person standing on a rotating platform suddenly stretches his arms, the platform slows down. Reason (R) : A person by stretching his arms increases the moment of inertia and decreases angular velocity.
(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