FIGURE 1 FIGURE 1 shows a horizontal human arm lifting a dumbbell. The forearm is in equilibrium under the action of the weight W of the dumbbell, the tension T in the tendon connected to the biceps muscle, and the force E exerted on the forearm itself. (For clarity, the point A where the tendon is attached is drawn farther from the elbow than its actual position) Given the weight of the forearm is 20 N and the mass of the dumbbell is 20 kg. The angle between the tension force and the horizontal, 0 is 80°. The length of the horizontal arm is 0.30 m. The horizontal distance between elbow pivot and point A is 0.050 m. Find T and the vector E and draw free body diagram for this case.
FIGURE 1 FIGURE 1 shows a horizontal human arm lifting a dumbbell. The forearm is in equilibrium under the action of the weight W of the dumbbell, the tension T in the tendon connected to the biceps muscle, and the force E exerted on the forearm itself. (For clarity, the point A where the tendon is attached is drawn farther from the elbow than its actual position) Given the weight of the forearm is 20 N and the mass of the dumbbell is 20 kg. The angle between the tension force and the horizontal, 0 is 80°. The length of the horizontal arm is 0.30 m. The horizontal distance between elbow pivot and point A is 0.050 m. Find T and the vector E and draw free body diagram for this case.
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FIGURE 1 shows a horizontal human arm lifting a dumbbell. The forearm is in equilibrium under the action of the weight W of the dumbbell, the tension T in the tendon connected to the biceps muscle, and the force E exerted on the forearm itself. (For clarity, the point A where the tendon is attached is drawn farther from the elbow than its actual position) Given the weight of the forearm is 20 N and the mass of the dumbbell is 20 kg. The angle between the tension force and the horizontal, ? is 80°. The length of the horizontal arm is 0.30 m. The horizontal distance between elbow pivot and point A is 0.050 m. Find T and the vector E and draw free body diagram for this case.
![FIGURE 1
FIGURE 1 shows a horizontal human arm lifting a dumbbell. The forearm is
in equilibrium under the action of the weight W of the dumbbell, the tension T
in the tendon connected to the biceps muscle, and the force E exerted on the
forearm itself. (For clarity, the point A where the tendon is attached is drawn
farther from the elbow than its actual position) Given the weight of the forearm
is 20 N and the mass of the dumbbell is 20 kg. The angle between the tension
force and the horizontal, 0 is 80°. The length of the horizontal arm is 0.30 m.
The horizontal distance between elbow pivot and point A is 0.050 m. Find T and
the vector E and draw free body diagram for this case.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe9ae79ea-5449-4aca-838b-4982c8c5d619%2F19d66399-e195-4e32-802e-03fe0247566c%2Fr76263j_processed.jpeg&w=3840&q=75)
Transcribed Image Text:FIGURE 1
FIGURE 1 shows a horizontal human arm lifting a dumbbell. The forearm is
in equilibrium under the action of the weight W of the dumbbell, the tension T
in the tendon connected to the biceps muscle, and the force E exerted on the
forearm itself. (For clarity, the point A where the tendon is attached is drawn
farther from the elbow than its actual position) Given the weight of the forearm
is 20 N and the mass of the dumbbell is 20 kg. The angle between the tension
force and the horizontal, 0 is 80°. The length of the horizontal arm is 0.30 m.
The horizontal distance between elbow pivot and point A is 0.050 m. Find T and
the vector E and draw free body diagram for this case.
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