0.525 in. diameter solid steel shaft supports two pulleys. The shaft has a lengthe 2 lb. The bearing at A can be idealized as a pin support and the bearing at D can b agnitude of the maximum horizontal shear stress in the shaft. P B C D L L nswer: i psi nax /3 /3 //3

A rigid bar, pinned at O, is supported by two identical springs as shown. Each spring consists of 20 turns of 3/4 inches diameter wire having a mean diameter of 6 inches. Determine the maximum load W (lbs) that may be supported if the shearing stress in the springs is limited to 20 ksi. Use approximate method. I Lizinte -2 ft. -4 ft- WA -3 ft- W

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