Examples of zero work done are
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when u try to push a wall you apply force to move it but doesn't move so it will be said as zero work done
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ram ram ...
Work said to be zero , If..
1. there is no displacement,but the force is applied.
2. earth revolves around the sun whole year but the work done by the gravitational force on the earth is 0 .
3.the body moving on friction less surface.
The work done is said to be zero work when force and displacement are perpendicular to each other or when either force or displacement is zero...
@user_left..
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