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October 21, 2014

October 21, 2014

Posted by **vinay** on Sunday, October 7, 2012 at 1:46pm.

- physics -
**bobpursley**, Sunday, October 7, 2012 at 2:44pmvf=vi+at

Hmmm. I am wondering if you meant 12m/s and 18m/s. I will assume so.

12=vi+2a

18=vi+4a

subtract first from second equation

6=2a a=3 m/s^2

12=Vi+2*3 solve for vi

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