1) The 50-lb load is hoisted by the pulley system and motor M. If the crate starts from rest and

by constant acceleration attains a speed of 15 ft/s after rising s = 6 ft, determine the power

that must be supplied to the motor at this instant. The motor has an efficiency of 76 %.

Neglect the mass of the pulleys and cables.

by constant acceleration attains a speed of 15 ft/s after rising s = 6 ft, determine the power

that must be supplied to the motor at this instant. The motor has an efficiency of 76 %.

Neglect the mass of the pulleys and cables.

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