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please help! FIND THE TORQUE OF THE ARM A horizontally outstretched arm supports

ID: 2845302 • Letter: P

Question

please help! FIND THE TORQUE OF THE ARM

A horizontally outstretched arm supports a weight of 22 lb in a hand (see figure). If the distance from the shoulder to the elbow is 1 ft and the distance from the elbow to the hand is 1 ft, find the magnitude and describe the direction of the torque about (a) the shoulder and (b) the elbow. (The units of torque in this case are ft-lb.) The magnitude of the torque about the shoulder is ft-lb. (Simplify your answer.) The magnitude of the torque about the elbow is ft-lb. (Simplify your answer.) What is the direction of the torque about the shoulder/elbow? Upward Into the screen To the right Out the screen Downward

Explanation / Answer

a: 22*2= 44 ft-lb

b: 22*1=22 ft-lb

torque is out of the screen