A man pulls a sled horizontally by exerting 32lb on the rope that's tied to its front end. If the rope makes an angle of 45° with horizontal, find the work done in moving the sled 55 ft.
What will be an ideal response?
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Mathematics
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A. 0 B. Does not exist C. 5 D. -8
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A. 
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C. -2
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Mathematics