A force of 1250 n is used to push a piano up a ramp 12 m
a force of 1250 N is used to push a piano up a ramp 12 m long to a height of 1.5 m above the ground. the piano weighs 7500 N. what is the work input and output?
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a force of 1250 n is used to push a piano up a ramp 12 m long to a height of 15 m above the ground the piano weighs
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