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Question : Assuming that the motor shown has an efficiency ε = 0.80, de...

Assuming that the motor shown has an efficiency \epsilon = 0.80, determine the power to be supplied to the motor if it is to pull a 250 lb crate up the incline with a constant speed \upsilon = 7 ft/s. Assume that the kinetic friction coefficient between the slide and the crate is { \mu }_{ k } = 0.25 and that \theta =28°.

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