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April 18, 2015

April 18, 2015

Posted by **Rebekah** on Saturday, September 10, 2011 at 4:59pm.

- physics -
**bobpursley**, Saturday, September 10, 2011 at 5:56pmd= vi*t+1/2 a t^2

60=6Vi+18a

but vf=vi+at

15=vi+6a

so you have two equations, two unknowns, solve. Multiply the second equation by 3, and subtract it frm the first is easy way.

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