Question

Give two examples of (i) positive work (ii) negative work (iii) zero work

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Updated on : 2022-09-05
Solution
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Positive work -
1. Pushing a box through a distance.
2. Lift a book through a height.

Negative work -
1. Work done by force of gravity on an object when lifted.
2. Work done by friction when we walk.

Zero work -
1. Pushing a wall.
2. Walking while holding an object.

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