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Mathhelp346

please HELP!! Does adding weight affect the coefficient of friction?

  • one year ago
  • one year ago

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  1. HELLSGUARDIAN
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    yes it does..as by adding weight the amount of normal reaction acting increases and hence frictional force also increases..as \[F =\mu N\] and N is Directly proportional to weight..

    • one year ago
  2. HELLSGUARDIAN
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    |dw:1350009988789:dw|

    • one year ago
  3. Mathhelp346
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    whats n

    • one year ago
  4. HELLSGUARDIAN
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    Normal reaction..the reaction which is acting on a body having weight..

    • one year ago
  5. Mathhelp346
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    ok thank you

    • one year ago
  6. HELLSGUARDIAN
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    your welcome..

    • one year ago
  7. SWdrafter
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    The increase of weight only results in the increase of the frictional force not the coef. of friction for this case. Note that the u is a constant.

    • one year ago
  8. Mathhelp346
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    does it not increase because the coefficient of friction is a ratio? that's the definition i have for coefficient of friction

    • one year ago
  9. SWdrafter
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    The ratio is derived from the observed frictional force and normal force. For normal dry friction this ratio remains constant.

    • one year ago
  10. Mathhelp346
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    so since its constant it does not change

    • one year ago
  11. SWdrafter
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    that is correct

    • one year ago
  12. Mathhelp346
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    and what do you mean by normal dry friction?

    • one year ago
  13. SWdrafter
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    This is between to surfaces with no lubricant in between them.

    • one year ago
  14. Mathhelp346
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    oh ok thank you

    • one year ago
  15. SWdrafter
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    Thanks for the medal.

    • one year ago
  16. SWdrafter
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    For more info, check out: http://en.wikipedia.org/wiki/Friction

    • one year ago
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