give an example where work done is positive , negative, zero..
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Example of work done positive- A man is pushing a box. Here the man pushing the box that is force. And there is also net displacement so the work done is positive
Example of work done negative- When a body falls freely under gravity , force gravity and displacement are in the same direction (q=0°) and the work done by a force of gravity is positive. Hence work done is negative.
Example of work done zero- For a body moving in a circular path, the centripetal force and displacement are perpendicular to each other. So the work done by centripetal force is zero.
Example of work done negative- When a body falls freely under gravity , force gravity and displacement are in the same direction (q=0°) and the work done by a force of gravity is positive. Hence work done is negative.
Example of work done zero- For a body moving in a circular path, the centripetal force and displacement are perpendicular to each other. So the work done by centripetal force is zero.
vishnupriya2:
thnx
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Answer:
Same direction, opposite direction and remains at rest known as positive negative and zero work done
Explanation:
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