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November 28, 2014

November 28, 2014

Posted by **Emma** on Tuesday, October 9, 2012 at 9:10pm.

- Physics -
**Elena**, Wednesday, October 10, 2012 at 4:54pmKE= PE+W(fr)

KE=m•v²/2

PE= m•g•h=m•g•s•sinα

W(fr)=F(fr) •s= μ•m•g•cosα•s

m•v²/2= m•g•s•sinα+ μ•m•g•cosα•s.

s= v²/2g(sinα+ μ•cosα)

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