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A mechanical shovel is digging sand, each load weighs 500 kgf, The shovel lifts each load to a height of 15 m in ½ minute and then drops it. The shovel has a hole through which the sand spills, while you are lifting it, at a rate of 160 kgf / min. Calculate the work done by the shovel in lifting each load. a) 6900 kgf/m b) 6910 kgf/m c) 6995 kgf/m d) 6985 kgf/m

A mechanical shovel is digging sand, each load weighs 500 kgf, The shovel lifts each load to a height of 15 m in ½ minute and then drops it. The shovel has a hole through which the sand spills, while you are lifting it, at a rate of 160 kgf / min. Calculate the work done by the shovel in lifting each load. a) 6900 kgf/m b) 6910 kgf/m c) 6995 kgf/m d) 6985 kgf/m

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 mechanical shovel is digging sand, each load weighs 500 kgf, The shovel lifts each load to a height of 15 m in ½ minute and then drops it. The shovel has a hole through which the sand spills, while you are lifting it, at a rate of 160 kgf / min. Calculate the work done by the shovel in lifting each load.

a) 6900 kgf/m
b) 6910 kgf/m
c) 6995 kgf/m
d) 6985 kgf/m

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