How can you say that friction is a necessary evil
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we will not be able to walk drive.Though it is sometimes bad but it is necessary too.
yuvi825:
without friction ever moving object will be in motion
like in apace
space
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Explanation:
Friction is an evil:
(1) Wear and tear of machinery is due to friction.
(2) A large amount of power is wasted in overcoming friction and the efficiency of the machines decrease considerably.
(3) Excessive friction between rotating parts of a machine producers enough heat and causes damage to the machinery.
That's why, Friction is necessary evil.......
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