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Answer to Question #5133 in Mechanics | Relativity for Jason Ranak

Question #5133
A 10kg solid sphere of radius 0.5m is rotated about an axis through its center. If the sphere accelerates from rest to an angular speed of 3.0 rad/s while rotating 2.0 revolutions, what net torque is required?
Expert's answer
L= 0.5m
m=10kg
F=mg
M=mgL
M=10*9.8*0.5 =49 N*m

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