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OpenStudy (anonymous):
8. A force of 80 pounds on a rope is used to pull a box up a ramp inclined at 100 from the horizontal. The rope forms an angle of 330 with the horizontal. How much work is done pulling the box 25 feet along the ramp?
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OpenStudy (anonymous):
Here Ramp 10° , rope 33° , with reference on ramp , 33-10 =23° Force on ramp =80 cos 23 =73.64 pounds W= 73.64*25 =1841 p-f
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