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September 20, 2014

September 20, 2014

Posted by **cool** on Monday, March 14, 2011 at 6:05pm.

- physics -
**bobpursley**, Monday, March 14, 2011 at 6:46pmVf^2=Vi+2ax

but a=F/m

0=Vi^2+2ax where a=-6*9.8m/s^2

solve for x.

then, k=f/x= ma/x

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