Physics, 22.07.2019 12:30 glocurlsprinces

You and two friends apply a force of 425 n to push a piano up a 2.0 m long ramp. if lifting the piano straight up requires 1700 n of force, what is the mechanical advantage of the ramp?

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You and two friends apply a force of 425 n to push a piano up a 2.0 m long ramp. if lifting the pian...

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