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August 31, 2014

August 31, 2014

Posted by **Anonymous** on Wednesday, August 1, 2012 at 4:58pm.

A. 5,190 ft-lb

B. 2,110 ft-lb

C. 25,300 ft-lb

D. 176 ft-lb

- Trigonometry -
**MathMate**, Wednesday, August 1, 2012 at 6:20pmwork done = weight*vertical distance (upwards)

= 117 lbs *(18/12)'

= 175.5 ft-lb (in gravitational units)

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