Physics!!
posted by joane .
An athlete at the gym holds a 5.54kg steel ball in his hand. His arm is 80.4cm long and has a mass of 4.26kg. What is the magnitude of the torque about his shoulder if he holds his arm straight out to his side, parallel to the floor?
b).What is the magnitude of the torque about his shoulder if he holds his arm straight, but 58.2deg below horizontal?
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