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FIGURE 12-7 -Assuming the Lower Arm Has a Mass of 2.8 Kg

question 1

Multiple Choice

FIGURE 12-7 FIGURE 12-7 -Assuming the lower arm has a mass of 2.8 kg and its CG is 12 cm from the elbow-joint pivot, how much force must the extensor muscle in the upper arm exert on the lower arm to hold a 7.5 kg shot put (Fig. 12-7) ? A) 100 N B) 500 N C) 750 N D) 1000 N E) 1500 N
-Assuming the lower arm has a mass of 2.8 kg and its CG is 12 cm from the elbow-joint pivot, how much force must the extensor muscle in the upper arm exert on the lower arm to hold a 7.5 kg shot put (Fig. 12-7) ?

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