ELi5 : is it practically possible to make work done negative?if yes what are some examples of it

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If the displacement is in a direction opposite to the force?

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Negative work is just having a moving object and stopping it. So yes.

If you have a block, it takes work to push that block with a force. Then, if you want to stop it, you have to make a force in the other direction. In real life this is taken care of for you by friction. So friction is a real life example of something doing negative work.

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