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3 years ago

12

A 100 ft length of steel chain weighing 15 lb/ft is danglingfrom a pulley. How much work is required to wind the chain onto thep

ulley?
(The answer is 75,000 ftlb, but I don't know how to do it. Please show allwork!)

1 answer:

NikAS [45]3 years ago

6 0

Answer:

Step-by-step explanation:

Weight is 1500 lb

Movement is counted in mass center 50 ft

Work= F*D

=1500*50

=75000ft lb

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