2. Figure 1 shows the free body diagram of an arm holding a dumbbell on the...
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2. Figure 1 shows the free body diagram of an arm holding a dumbbell on the hand. The weight of the forearm and hand is 20 N and the dumbbell weighs 250 N. Calculate the biceps muscle force Fm in order to maintain the elbow and the forearm at an equilibrium position. (Given that: dl = 0.05 m, d2 = 0.16 m, and d3 = 0.45 m) 250N Figure I 3. The middle deltoid attaches to the humerus at an angle of 15° (see Fig. 2). What are the sizes of the rotary and stabilising components of muscle force when the total muscle force is 500 N? What is the abductor moment about the shoulder joint if the muscle is attached 0.1 m from the axis of rotation? 1S 2. Figure 1 shows the free body diagram of an arm holding a dumbbell on the hand. The weight of the forearm and hand is 20 N and the dumbbell weighs 250 N. Calculate the biceps muscle force Fm in order to maintain the elbow and the forearm at an equilibrium position. (Given that: dl = 0.05 m, d2 = 0.16 m, and d3 = 0.45 m) 250N Figure I 3. The middle deltoid attaches to the humerus at an angle of 15° (see Fig. 2). What are the sizes of the rotary and stabilising components of muscle force when the total muscle force is 500 N? What is the abductor moment about the shoulder joint if the muscle is attached 0.1 m from the axis of rotation? 1S
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Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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