FM -B. F FM W1 Wo A W1 Wo

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Consider a person wearing a weight boot, and from a sitting position, doing lower leg flexion/extension exercises to strengthen the quadriceps muscles. Based on the simple static equilibrium model shown below, determine the quadriceps muscle force (Fm) and the horizontal- and vertical-components of the joint reaction force (F and Fix). The weight of the lower leg (W 1) is 150N and the weight of the boot (Wo) is 200N. Assume that points O, A, B, and C all lie along a straight line with the distance between OA = 12cm. OB = 25cm and OC = 55cm and 0 = 20° and B : 50°.
F,
FM
F FM
W1
W1
Wo
Transcribed Image Text:F, FM F FM W1 W1 Wo
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