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The 380-lb cylinder at A is hoisted using the motor and the pulley system shown. The...

The 380-lb cylinder at A is hoisted using the motor and the pulley system shown. The speed of point B on the cable is increased at a constant rate from zero to vB = 10 ft/s in t = 5 s

A motor is on a horizontal surface raised above the ground. This motor is connected to a cord that passes over an upper pulley set at the edge of the horizontal surface and goes down to a lower pulley and passes under it. After it, the cord goes up to a ceiling and is attached to it. Block A is suspended from the axle of the lower pulley and moves up with a speed of v subscript a. Point B is marked on the horizontal part of the cord between the motor and the upper pulley.

Determine the tension in the cable at B to cause the motion.

engineering   Civil-Engineering   
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Answer #1

acceleration of paint a B = B = 1 = 24+/62 Equation for total length 2SA+SA=I dt 2V + Vo = 0 Differential wirot, time 29A taß

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