Why is friction considered a nessary evil
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friction is considered necessary Evil because it is use full as well as harmful....
friction help us to walk.
friction help us to write on paper
friction prevent vehicle from skidding
on the other hand
it causes wear and tear action
it causes loss of energy
it causes heating effect in machines
friction help us to walk.
friction help us to write on paper
friction prevent vehicle from skidding
on the other hand
it causes wear and tear action
it causes loss of energy
it causes heating effect in machines
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