A loaded ore car has a mass of 9.50 x 102 kg and rolls onrails with negligible friction. It starts from rest and is pulledup a mine shaft by a cable connected to a winch. The shaftis inclined at 30.0° above the horizontal. The car acceleratesuniformly to a speed of 2.20 m/s in 12.0 s and then continuesat constant speed. (a) What power must the winch motor providewhen the car is moving at constant speed? (b) What maximumpower must the motor provide? (c) What total energytransfers out of the motor by work by the time the car movesoff the end of the track, which is of length 1 250 m?

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Q: I need help with this homework problem.

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A: Solution

Q: What power delivered by

A: Power = F×v