14. Torque & Rotational Dynamics
Torque Due to Weight
Multiple Choice
Multiple ChoiceConsider the diagram below of a typical human arm lifting a weight in a motion known as a 'curl.' Peak human training of such an arm can result in record lifts of 110 kg. Increasing a lift by a single kilogram in competition can make all the difference. Now, suppose a particular human had a bicep tendon that attached just 5.0 mm farther from the elbow joint than usual. Given the same bicep strength as other peak-condition athletes, what weight could this person curl (lift in this way)?
A
88 kg
B
96 kg
C
110 kg
D
140 kg
E
120 kg
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