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Kinetic Theory

by MathewsMD
Tags: kinetic, theory
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MathewsMD
#1
Jan8-14, 08:55 PM
P: 307
http://en.wikipedia.org/wiki/Kinetic...kinetic_energy

Based on the derivation for P in the above link, one of the early steps was:

Δt = 2L/vx

which is fine since it is analyzing one specific wall of the container, but then in the next step:

F = Δp/Δt = mvx2/L

And the 2 seems to disappear completely. Could anyone please explain why it is gone?
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Simon Bridge
#2
Jan8-14, 10:19 PM
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The 2 cancels with the expression for the change in momentum (1st line).


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