Question

An object weighing 20 n moves horizontally to the right a distance of 5.0 m. what is the work done on the object by the force of gravity

Answer 1

Hey there,
The object is moving horizontally. Thus no work is done by the force of gravity. When the object is thrown up or dropped then the force of gravity will act on it.

Hope this helps ^_^

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Answer 2

When things move horizontally, NO work is done by gravity.