14. Torque & Rotational Dynamics
Torque Due to Weight
Multiple Choice
Multiple ChoiceA guy standing straight up stretches out his arm horizontally while holding a 60 lb (27.2 kg) barbell. His arm is 64 cm long and weighs 45 N. Calculate the Net Torque that the barbell and the weight of his arm produce about his shoulder. You may assume that his arm has uniform mass distribution.
A
−156 N•m
B
−171 N•m
C
−185 N•m
D
−312 N•m
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