Question

A light string is wrapped around a uniform solid cylinder of mass m and radius R. If string is pulled vertically upward such that the centre of
mass of the cylinder remains stationary. Initial angular acceleration of cylinder, is
30​

Answer 1

Answer:

mg/3

Explanation:

τ=Rα

TR=Iα

For solid cylinder I= 1/2 mr^2

and a=rα (no slipping)

⟹T= 1/2 ma

Equation of motion, Ma=Mg−T

2T=Mg−T⟹T=

mg/3

I think it may help u

Answer 2

Answer:

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