The two ropes seen in FIGURE EX9.18 are used to lower a 255 kg piano 5.00 m

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The two ropes seen in FIGURE EX9.18 are used to lower a 255 kg piano 5.00 m from a second-story window to the ground. How much work is done by each of the three forces?

1830 N 60% 1295 N 45° 2500 N FIGURE EX9.18

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