Friction is a necessary evil. Give any two disadvantages of friction in everyday life. Also suggest measure to reduce friction
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Friction produces a lot of heat in various parts of the machinery and this leads to wastage of energy as heat.
Opposes motion, hence more energy is needed to overcome friction.
Noise production in machines is irritating as well as leads to energy loss.
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Answer:
the disadvantages are:-
1.) machines get heated up due to friction.
2.) the soles of our shoes get weared due to friction.
to reduce friction we use lubricants example- oil greese.
I hope it will help you
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