A 60 kg barrel is lifted 20 m in the air using a pulley, Physics

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A 60 kg barrel is lifted 20 m in the air using a pulley

A 60 kg barrel is lifted 2.0 m in the air using a pulley system with a mechanical advantage of 3. A person only needs to maintain a tension equal to one third of the barrel's weight to lift it at constant speed. How much work does the person do lifting the barrel?

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Physics: A 60 kg barrel is lifted 20 m in the air using a pulley

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