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solve it plz step by step for a, b , c & d Bob is holding...

solve it plz step by step for a, b , c & d

  1. Bob is holding a pineapple in his left hand with his forearm 30 degrees from the horizontal floor. Draw a free body diagram for the forces and moments on his lower arm. Calculate external forces and moments for this arm segment. Assume:
    1. The pineapple weighs 1 kg
    2. The pineapple’s weight is located at the center of mass of the hand
    3. Distance from the wrist to COM of hand = 0.07m
    4. Distance from the wrist to elbow = 0.28m
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