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A Steel Girder Weighing 200 Lb Is Hoisted from Ground

Question 31

Multiple Choice

A steel girder weighing 200 lb is hoisted from ground level to the roof of a 40-ft building using a chain that weighs 5 lb/running foot. Find the work done.


A) 4,000 ft-lb
B) 8,100 ft-lb
C) 12,000 ft-lb
D) 8,000 ft-lb

Correct Answer:

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