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A 32 kg skip attached to a steel rope on a crane is used to hoist bricks from the ground to the top of a construction site.  The steel rope is wound onto a lifting drum with a diameter of 700 mm and rotational frequency of 52 revolutions per minute.  The lifting drum is situated on the top floor. Calculate the work done per minute (in joules per minute) in lifting the 20 bricks (150 kg)

A 32 kg skip attached to a steel rope on a crane is used to hoist bricks from the ground to the top of a construction site.  The steel rope is wound onto a lifting drum with a diameter of 700 mm and rotational frequency of 52 revolutions per minute.  The lifting drum is situated on the top floor. Calculate the work done per minute (in joules per minute) in lifting the 20 bricks (150 kg)

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A 32 kg skip attached to a steel rope on a crane is used to hoist bricks from the ground to the top of a construction site.  The steel rope is wound onto a lifting drum with a diameter of 700 mm and rotational frequency of 52 revolutions per minute.  The lifting drum is situated on the top floor. Calculate the work done per minute (in joules per minute) in lifting the 20 bricks (150 kg)
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