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11Friction : A NecessaryEvil​

Answer»

Friction is a necessary as-

  • It helps us to walk.
  • It helps us to write.
  • Friction allows things to stop and slow down the speed of the object in motion.

It is an evil as-

  • Friction PROVIDES an OPPOSING force which TRIES to slow the object down.
  • It wears out tyres and soles of our shoes.
  • It produces HEAT which MAY damage machines.

Thus, friction is a necessary evil.



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