A winch is driven by a 4.0 kW electric motor and is lifting a load of 400 kg to a height of 5.0m. If the lifting operation takes 8.6 s, calculate the overall efficiency of the winch and the motor system. (State the answer as a %) 2.
A winch is driven by a 4.0 kW electric motor and is lifting a load of 400 kg to a height of 5.0m. If the lifting operation takes 8.6 s, calculate the overall efficiency of the winch and the motor system. (State the answer as a %) 2.
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter10: Work, Energy And Machines
Section: Chapter Questions
Problem 68A
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