Physics
Physics, 22.01.2021 19:00, iamabouttofail

Sergei uses a lever to lift a heavy rock. He obtains a 2.5m lever and places the fulcrum 0.7m from the rock. What is the ideal mechanical advantage of Sergei's lever?

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Sergei uses a lever to lift a heavy rock. He obtains a 2.5m lever and places the fulcrum 0.7m from t...

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