An ironworker carries a 7.50-kg toolbag up a vertical ladder on a high-rise building under construction. (a)
Question:
An ironworker carries a 7.50-kg toolbag up a vertical ladder on a high-rise building under construction.
(a) After 30.0 s, he is 8.20 m above his starting point. How much work does the worker do on the toolbag?
(b) If the worker weighs 645 N, how much work does he do in lifting himself and the toolbag?
(c) What is the average power developed by the worker?
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a W Fs mgs 750kg980m s 2 82...View the full answer
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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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