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Statement of a problem № 41604

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The crate, having a weight of 50 lb, is hoisted by the pulley system and motor M. if the crate starts from rest and, by constant acceleration, attains a speed of 12 ft/s after rising 10 ft, determine the power that must be supplied to the motor at the instant s = 10 ft. The motor has an efficiency E = 0.74.




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