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HardPhysicsRotational motion
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-- 3. A solid cylinder of mass 50 kg and radius 0.5 m is free to rotate about the 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 is
A
25 N
B
50 N
C
78.5 N
D
157 N
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