1.

2. Write two advantages and disadvantages of friction​

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Answer:

Advantages of friction:

  • Friction enables us to WALK freely.
  • It helps to support ladder against wall.
  • It BECOMES possible to transfer one form of energy to another.
  • Objects can be PILED up without slipping.
  • Breaks of vehicles work due to friction.
  • It always resists the MOTION, so extra energy is REQUIRED to overcome it.


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