oaded ore car has a mass of 1200 kg and rolls on rails with negligible friction. It starts with an initial speed of 1.0 m/s and is pulled up a mine shaft by a cable connected to a winch. The shaft is inclined at 20.0° above the horizontal. The car accelerates uniformly to a speed of 3.50 m/s in 10.0 s and then continues at a constant speed. (a) What power must the winch motor provide when the car is moving at constant speed? (b) What maximum power must the motor provide? (c) What total energy transfers out of the motor by work by the time the car moves off the end of the track, which is of length 1300 m?
oaded ore car has a mass of 1200 kg and rolls on rails with negligible friction. It starts with an initial speed of 1.0 m/s and is pulled up a mine shaft by a cable connected to a winch. The shaft is inclined at 20.0° above the horizontal. The car accelerates uniformly to a speed of 3.50 m/s in 10.0 s and then continues at a constant speed. (a) What power must the winch motor provide when the car is moving at constant speed? (b) What maximum power must the motor provide? (c) What total energy transfers out of the motor by work by the time the car moves off the end of the track, which is of length 1300 m?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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loaded ore car has a mass of 1200 kg and rolls on rails with negligible friction. It starts with an initial speed of 1.0 m/s and is pulled up a mine shaft by a cable connected to a winch. The shaft is inclined at 20.0° above the horizontal. The car accelerates uniformly to a speed of 3.50 m/s in 10.0 s and then continues at a constant speed. (a) What power must the winch motor provide when the car is moving at constant speed? (b) What maximum power must the motor provide? (c) What total energy transfers out of the motor by work by the time the car moves off the end of the track, which is of length 1300 m?
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