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When a body is lifted, the work done by the gravitational force is positive.

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in Engineering Physics I by (558k points)
When a body is lifted, the work done by the gravitational force is positive.

(a) True

(b) False

The question was asked by my school teacher while I was bunking the class.

My question is based upon Work, Energy and Power topic in section Nature of Physical World of Engineering Physics I

1 Answer

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Right choice is (b) False

Easy explanation: When a body is lifted, the work done by the gravitational force is negative. This is because the gravitational force acts vertically downwards while the displacement is in vertically upward direction.

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