Trigonometry
posted by Anonymous .
How much work is done by raising a 117lb box vertically 18.0 inches?
A. 5,190 ftlb
B. 2,110 ftlb
C. 25,300 ftlb
D. 176 ftlb

work done = weight*vertical distance (upwards)
= 117 lbs *(18/12)'
= 175.5 ftlb (in gravitational units)
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