A disc has mass M and radius R . How much tangential force should be applied to the rim of the disc so as to rotate the disc with angular velocity ω in time t ?

Question

A disc has mass M and radius R . How much tangential force should be applied to the rim of the disc so as to rotate the disc with angular velocity ω in time t ?, M R ω 4 t, M R ω 2 t, M R ω t, M R ω t

MARKS App · Accepted Answer

τ = I α F × R = M R 2 2 × ω t F = M R 2 × ω t

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