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what is friction is it necessary …

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what is friction is it necessary that the force of friction can be automatically. or by a person
  • 1 answers

Meghna Thapar 5 years, 10 months ago

Frictional force plays an important role in our life. In some cases it is useful whereas if it is harmful and we need to reduce it.

Advantages of friction:

  1. We are able to walk on ground because friction between the sole of our shoes and ground prevents us from slipping over the ground.
  2. Friction between tyres of a car and the road enables a car to move forward on road without skidding.
  3. The brakes of a car or a bicycle work by friction.
  4. We are able to write and make drawings on paper because there is friction between the tip of pencil and paper.
  5. We can hold a glass tumbler in our hands because of friction between the glass tumbler and our hands.
  6. We are able to fix nails in a wall due to friction.
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