Charlou pulls on 45-kg cart with a force of 52 N at an angle 60 ˚ from the horizontal. How much work does he do pulling the crate at a distance of 14?
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Answer:
work done = F×s×cos¢
work done = 52 × 14 × 60°
work done = 52 × 14 × ½ (since cos 60 = ½)
work done = 364 Joules
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