Why work done by Gravitational force on horizontal plane is zero ?
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Why work done by Gravitational force on horizontal plane is zero?
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Gravitational force acts vertically downwards while displacement is horizontal.
Work done is F * displacement in the direction (or opposite) to the force.
Well, work done by gravity is zero on the horizontal table even if the table were rough (with friction)!
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adverb adverb downwards
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