Question

Why do we say work done against gravity is negative?

Answer 1

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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Answer 2

Answer:

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.

Explanation:

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