Question

what do you understand by positive,negative and zero work done​

Answer 1

The work is done in this case known as Positive work. Negative work: Negative work is performed if the displacement is opposite to the direction of the Force applied. Zero work: When force and displacement are perpendicular to each other, or when force or displacement is zero.

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Answer 2

Answer:

Positive work done means that the work is done in the acting of force.

Ex-Pushing a door

Negative work done means that the work is done in the opposite direction of the force.

Ex-Carrying of load by a coolie

Negative work done means that there is no work done even when force is applied.

Ex-Pushing the wall

Explanation:

Hope it helps..

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