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A box of 100 Ib of sand is being pulled up at a uniform rate a distance of 50 ft over 1 minute. The sand is leaking from the box at a rate of 1 Ib/s. The box itself weighs 5 lb and is pulled by a rope weighing 0.2 Ib/ft. How much work is done lifting just the rope? Answer must be in ft-lb.

A box of 100 Ib of sand is being pulled up at a uniform rate a distance of 50 ft over 1 minute. The sand is leaking from the box at a rate of 1 Ib/s. The box itself weighs 5 lb and is pulled by a rope weighing 0.2 Ib/ft. How much work is done lifting just the rope? Answer must be in ft-lb.

Mathematics For Machine Technology
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter65: Achievement Review—section Six
Section: Chapter Questions
Problem 45AR
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3. A box of 100 Ib of sand is being pulled up at a uniform rate a distance of 50 ft over 1 minute. The sand is leaking from the box at a rate of 1 Ib/s. The box itself weighs 5 lb and is pulled by a rope weighing 0.2 Ib/ft. How much work is done lifting just the rope? Answer must be in ft-lb.
Transcribed Image Text:3. A box of 100 Ib of sand is being pulled up at a uniform rate a distance of 50 ft over 1 minute. The sand is leaking from the box at a rate of 1 Ib/s. The box itself weighs 5 lb and is pulled by a rope weighing 0.2 Ib/ft. How much work is done lifting just the rope? Answer must be in ft-lb.
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