A solid cylinder of mass 50 k g and radius 0.5 m is free to rotate about horizontal axis. A massless string is wound round the cylinder with one end attached to it and other hanging freely. Tension in the string required to produce an angular acceleration of 2 revolutions s - 2

Question

A solid cylinder of mass 50 k g and radius 0.5 m is free to rotate about horizontal axis. A massless string is wound round the cylinder with one end attached to it and other hanging freely. Tension in the string required to produce an angular acceleration of 2 revolutions s - 2, 25 N, 50 N, 78.5 N, 157 N

MARKS App · Accepted Answer

In this question we have to calculate tension Given M = 50 kg R = 0.5 m angular acceleration = 2 revolution/ s 2 Now, Balancing the Torque T × R = M R 2 2 α T = M R 2 α = 50 × 0.5 2 2 × 2 π = 157 N So, the tension will be 157 N

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