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13-05-2021
Physics

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A 300 kg grand piano is pushed up a 4 meter ramp into the back of a truck using 1200 Newtons of force. The bed of the truck is 1.25 meters off the ground. How efficient is the piano mover that pushed the piano into the truck? (2 sig figs and answer in a percentage)

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ai688642 ai688642

13-05-2021

Answer: KE=0.5*m*v2

Explanation: hope this helps!!!

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