Kinetic Theory


by MathewsMD
Tags: kinetic, theory
MathewsMD
MathewsMD is offline
#1
Jan8-14, 08:55 PM
P: 281
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?
Phys.Org News Partner Chemistry news on Phys.org
Repeated self-healing now possible in composite materials
Potent, puzzling and (now less) toxic: Team discovers how antifungal drug works
Research offers 'promise' of improved food safety
Simon Bridge
Simon Bridge is offline
#2
Jan8-14, 10:19 PM
Homework
Sci Advisor
HW Helper
Thanks ∞
PF Gold
Simon Bridge's Avatar
P: 10,918
The 2 cancels with the expression for the change in momentum (1st line).


Register to reply

Related Discussions
Kinetic Theory- Calculating Kinetic Energy Biology, Chemistry & Other Homework 3
Kinetic Theory Introductory Physics Homework 4
Kinetic theory of gases theory question Introductory Physics Homework 4
kinetic theory Introductory Physics Homework 0
Kinetic theory HW help :( Introductory Physics Homework 0