How much tension would be exerted on the pulley in Example Problem 5.4 if the weights were observed to be falling at 1.5 ft/s2 ?
Example Problem 5.4
A patient is exercising his shoulder extensor muscles with wall pulleys (Fig. 5.8). Weights of 20, 10, and 5 lbs are loaded on the weight pan, which weighs 4 lbs. The patient is able to exert 45 lbs on the pulley. What is the resultant force of the entire system?
What are the magnitude and direction of acceleration of the weights?
