when work is positive or negative with examples
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Answer:Negative work: Negative work is performed if the displacement is opposite to the direction of the Force applied. Example: Work was done the gravity on a rocket going perpendicular upwards. Zero work: When force and displacement are perpendicular to each other, or when force or displacement is zero.
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Examples when work is positive:-)
- Riding a bicycle.
- Moving a table.
- Throwing a stone .
- Kicking a ball.
Examples when work is negative:-)
- Porter carrying weight on top of his head.
- A force of kinetic energy does negative work on an object.
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