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Question

Which of the following is a way to increase friction?


  1. Sand

  2. Road

  3. Ice

  4. Same on all cases


Solution

The correct option is C

Ice


When a body is placed on the second body, the irregularities of the two surfaces get interlocked. Friction is mainly because of the interlocking of these irregularities. By making the surface rough we can increase the irregularities. If there are more irregularities then the friction will be more. So, making the surface rough will increase friction.

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