Homework Help: Physics

Posted by Stevie on Monday, March 15, 2010 at 5:39pm.

After a tornado, a 0.55g straw was found embedded 2.3cm into the trunk of a tree. if the average force excerted on the straw by the tree was 65N, what was the speed of the straw when it hit the tree?

Physics - drwls, Monday, March 15, 2010 at 5:46pm
(Kinetic energy of straw) = Work = (Force)x(penetration distance)
(1/2) M V^2 = F*X

V = sqrt(2F*X/M)
Physics - Anonymous, Wednesday, July 13, 2011 at 4:12pm
2.32

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