Mathhelp346
  • Mathhelp346
please HELP!! Does adding weight affect the coefficient of friction?
Physics
  • Stacey Warren - Expert brainly.com
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katieb
  • katieb
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anonymous
  • anonymous
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..
anonymous
  • anonymous
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Mathhelp346
  • Mathhelp346
whats n

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anonymous
  • anonymous
Normal reaction..the reaction which is acting on a body having weight..
Mathhelp346
  • Mathhelp346
ok thank you
anonymous
  • anonymous
your welcome..
anonymous
  • anonymous
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.
Mathhelp346
  • Mathhelp346
does it not increase because the coefficient of friction is a ratio? that's the definition i have for coefficient of friction
anonymous
  • anonymous
The ratio is derived from the observed frictional force and normal force. For normal dry friction this ratio remains constant.
Mathhelp346
  • Mathhelp346
so since its constant it does not change
anonymous
  • anonymous
that is correct
Mathhelp346
  • Mathhelp346
and what do you mean by normal dry friction?
anonymous
  • anonymous
This is between to surfaces with no lubricant in between them.
Mathhelp346
  • Mathhelp346
oh ok thank you
anonymous
  • anonymous
Thanks for the medal.
anonymous
  • anonymous
For more info, check out: http://en.wikipedia.org/wiki/Friction

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