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April 17, 2014

April 17, 2014

Posted by **Sally** on Tuesday, July 31, 2012 at 10:33am.

- Phy 231 -
**Elena**, Tuesday, July 31, 2012 at 11:35amv= 50 km/h = 50000/3600 =13.9 m/s

If the wheel is disc, I =mR²/2;

ω = v/R.

Iω²/2 = mR²v²/22R²= mv²/4

KE=18(mv²/2 + Iω²/2) = 18(mv²/2 + Iω²/4)=

=183 mv²/4=27mv²/2

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