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April 16, 2014

April 16, 2014

Posted by **Mike Joseph** on Sunday, June 17, 2012 at 11:43am.

May someone walk me through this problem step by step? Thank you

*The equation friction coefficient= v^2/Rg does not make any sense. Because, I do not have a velocity.

- Physics -
**Elena**, Sunday, June 17, 2012 at 6:18pmmv²/R= F(fr)

F(fr)=μN=μmg

mv²/R= μmg

μ= v²/Rg

Follow up

v= sqrt(μ•R•g) =

=sqrt(0.8•71•9.8) =23.6 m/s

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