V Part A Approximately what magnitude force, FM, must the extensor muscle in the upper arm exert on the lower arm to hold a 5.7 kg shot put(Figure 1)? Assume the lower arm has a mass of 2.7 kg and its CG is 13 cm from the elbow-joint pivot. Express your answer using two significant figures. VO AEQ ? FM = N Submit Request Answer of 1 Provide Feedback Next >