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NEET UG PHYSICS MCQ: SYSTEM OF PARTICLES

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A rope is wound around a hollow cylinder of mass
4 kg and radius 20 cm. What is the angular
acceleration of the cylinder if the rope is pulled
with a force of 15 N:

View answer and explanation

Correct option: A

37.5 \mathrm{~rad} / \mathrm{s}^2

Option A (

37.5 \mathrm{~rad} / \mathrm{s}^2

) is correct because it is the angular acceleration calculated using the formula torque = I*alpha, where I is the moment of inertia of the hollow cylinder.

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