Physics, 23.01.2020 18:31 ChessieGiacalone

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juan uses a lever to lift a rock. he places the rock on the short arm of the lever and pushes down on the other arm of the lever. he applies 30 n of force over a distance of 1 m. the other end of the lever moves in the opposite direction and raises the rock a distance of 0.2 m. what is the weight (force) of the rock
what is the mechanical advantage of the lever in question 1?

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juan uses a lever to lift a rock. he places the...