A- A 0.750 x 10**3 kg elevator car carries a maximum load of 7.500 x 10**2 kg. A constant frictional force of 3.00 x 10**3 N retards its motion upward, as in figure . What minimum power,in kilowatts and in horsepower, must the Motor deliver to lift the fully loaded elevator car at a constant speed of 3.00 m/s? Motor

A- A 0.750 x 103 kg elevator car carries a maximum load of 7.500 x 102 kg. A constant frictional force of 3.00 x 10**3 N retards its motion upward, as in figure . What minimum power,in kilowatts and in horsepower, must the Motor deliver to lift the fully loaded elevator car at a constant speed of 3.00 m/s? Motor

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 58P: A 6.50 102-kg elevator starts from rest and moves upward for 3.00 s with constant acceleration...

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A 6.50 102-kg elevator starts from rest and moves upward for 3.00 s with constant acceleration until it reaches its cruising speed, 1.75 m/s. (a) What is the average power of the elevator motor during this period? (b) How does this amount of power compare with its power during an upward trip with constant speed?
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