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Unformatted text preview: The load of weight W is hoisted by the pulley system and motor M . If the crate starts from rest and by constant acceleration attains a speed v after rising a distance s = s 1 , determine the power that must be supplied to the motor at this instant. The motor has an efficiency . Neglect the mass of the pulleys and cable. Given: W 50 lbf = 0.76 = v 15 ft s = g 32.2 ft s 2 = s 1 6 ft = 275...
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- Spring '08