Give example to show that friction is both a friend and a foe?
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FRICTION IS NECESSARY
1.Walking will not be possible without friction.
2.Brakes of the vehicles will not work without friction
3.Assembling of furniture is not possible
4. One cannot be able to write on paper or blackboard.
FRICTION IS EVIL
1.Due to opposing nature, extra energy has to be spent in overcoming friction
2.It causes wear and tear and production of heat in the moving parts of machines.
1.Walking will not be possible without friction.
2.Brakes of the vehicles will not work without friction
3.Assembling of furniture is not possible
4. One cannot be able to write on paper or blackboard.
FRICTION IS EVIL
1.Due to opposing nature, extra energy has to be spent in overcoming friction
2.It causes wear and tear and production of heat in the moving parts of machines.
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