A motor on an escalator is capable of developing 12 kW of power. (a) How many passengers
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(a) How many passengers of mass 75 kg each can it lift a vertical distance of 9.0 m per min, assuming no power loss?
(b) What power, in kW, motor is needed to move the same number of passengers at the same rate if 45% of the actual power developed by the motor is lost to friction and heat loss?
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Related Book For
Applied Physics
ISBN: 978-0132109277
10th Edition
Authors: Dale ewen, Neill schurter, P. erik gundersen
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