Why we don't take the value of acceleration due to gravity (g) negative while calculating potential energy(mgh)
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Gravity does negative work here because gravity goes in the opposite direction as the displacement. If the crate is moving upwards at a constant velocity, what is the work done by the tension in the rope as it is hoisted up 10 meters? The phrase “constant velocity” always translates to zero acceleration.
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because the acceleration due to gravity is always pasitive
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