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Old July 11th, 2007, 04:03   #31
Barf
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Join Date: Dec 2001
Location: Hell (if you were here, you'd thinks so,too)
For those who were at the last sniper clinic, I went over the difference between momentum and kinetic energy.

Momentum = mass * velocity = kg * m/s

Kinetic Energy = 0.5 * mass * velocity² = kg * (m/s)²

A small car (assume 1 metric tonne) moving at 1 m/s has the same momentum as 1 kg block at 1000 m/s, but the block has 1000 times the kinetic energy.

For bb impact, kinetic energy is the important factor, ie your body is not trying to stop the bb (momentum), the bb is imparting/transferring it's energy to you (kinetic energy).
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Last edited by Barf; July 11th, 2007 at 22:39..
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