12.22. Model: The disk is a rotating rigid body. Visualize:The radius of the disk is 10 cm and the disk rotates on an axle through its center. Solve:The net torque on the axle is AAABBBCCCDDDsinsinsinsin(30 N)(0.10 m)sin( 90 )(20 N)(0.050 m)sin90
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