Question

write example of 0 work and negative work​

Answer 1

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Case of zero work done. If the directions of force and the displacement are perpendicular to each other, the work done by the force on the object is zero. For example, when we push hard against a wall, the force we are exerting on the wall does no work, because in this case the displacement of the wall is d = 0.

Answer 2

example for zero work is ,a men carrying a bag on his head and example of negative work is , friction is always work in negative direction.