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Physics, 18.02.2021 14:00 montanolumpuy

If the above box was lifted in 3s, what was the power used? A car has a mass of 20,000kg. How much energy would be needed to lift the car 5m?
You apply a force of 3,000N to the lever of the jack. The car rises 0.25m. The lever on the jack goes down 3.2m. What is the force on the car?

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