How long would it take a 4.50-kW motor to raise a 175-kg boiler to a platform 15.0

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How long would it take a 4.50-kW motor to raise a 175-kg boiler to a platform 15.0 m above the floor?

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Applied Physics

ISBN: 978-0132109277

10th Edition

Authors: Dale ewen, Neill schurter, P. erik gundersen

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Question Posted: May 17, 2013 08:50 AM

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How long would it take a 4.50-kW motor to raise a 175-kg boiler to a platform 15.0

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Power of the motorP 45 kw 4500 Jsec Mass of the boilerm 175 kg Height to be raisedh 15 m Acceleration due to gravityg 981 ms2 Therefore work done mgh 17598115 J 25751 J Time taken 257514500 sec 572 sec So the motor will take 572 sec to raise the boiler ...View the full answer

Applied Physics

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