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Question

To increase friction between two bodies


A

their surface contact should be rough

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B

the wight of the body should be more

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C

both A and B

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D

none of these

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Solution

The correct option is C

both A and B


Explanation:

Methods to improve friction:

  1. provide deep grooves.
  2. Increase the weight of an object. friction is directly proportional to the weight of the object.
  3. Increase the irregularities between two surfaces.

Hence, the correct option: (C) both A and B


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