what can we do to reduce friction
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HELLO MATE HERE IS YOUR ANSWER
To reduce friction lubricants are used as well as Ball bearings are use . Thus the surface become smooth.
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why is friction called an necessary evil
friction is called an necessary because we are able to Stand because of only friction and breaks of vehicles are working only because of friction
without friction works may not be possible
Answered by
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TO reduce FRICTION following things can be used
1) by applying oil or lubricant over surface.
2) by making surface very smooth with other practices such as using grinder and making surface smooth.
3) by reducing the area of physical contact over two bodies.
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