Posted by **eiyka** on Sunday, August 28, 2011 at 7:48pm.

Calculate the kinetic energy acquired by a 11- nail when it is struck by a 540- hammer moving with an initial speed of 4.9 .

- physics -
**bobpursley**, Sunday, August 28, 2011 at 10:15pm
KE= 1/2 m v^2

normally, in the SI system, for KE to be in joules, mass has to be in kilograms, and velocity in meters per second.

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