Determine the maximum mass (kg) that can be lifted at E if the 10-HP motor A has a maximum rotation speed of 300 rpm where the diameter of the shaft AB and CE are 10 mm and 15 mm, respectively. The allowable shearing stress is 1 GPa with F.S. of 1.2 for both shafts. Neglect the deformation of the cable at E. Where: radius of the gear at B, rg = 100 mm radius of the gear at C, rc = 150 mm O
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