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Mathhelp346

  • 3 years ago

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

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  1. HELLSGUARDIAN
    • 3 years ago
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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..

  2. HELLSGUARDIAN
    • 3 years ago
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    |dw:1350009988789:dw|

  3. Mathhelp346
    • 3 years ago
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    whats n

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

  5. Mathhelp346
    • 3 years ago
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    ok thank you

  6. HELLSGUARDIAN
    • 3 years ago
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    your welcome..

  7. SWdrafter
    • 3 years ago
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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.

  8. Mathhelp346
    • 3 years ago
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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

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

  10. Mathhelp346
    • 3 years ago
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    so since its constant it does not change

  11. SWdrafter
    • 3 years ago
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    that is correct

  12. Mathhelp346
    • 3 years ago
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    and what do you mean by normal dry friction?

  13. SWdrafter
    • 3 years ago
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    This is between to surfaces with no lubricant in between them.

  14. Mathhelp346
    • 3 years ago
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    oh ok thank you

  15. SWdrafter
    • 3 years ago
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    Thanks for the medal.

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

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