Mechanics/Physics Momentum Question Watch

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Barny
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#1
Report Thread starter 16 years ago
#1
Basically, when two particles collide and they coalesce, if you are asked to find the momentum change(Impulse) on one of them, do you use the mass before collision as the mass after collision, or do you use the new coalesced mass?
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way2go
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(Original post by imasillynarb)
Basically, when two particles collide and they coalesce, if you are asked to find the momentum change(Impulse) on one of them, do you use the mass before collision as the mass after collision, or do you use the new coalesced mass?
I would use the same mass, although in most cases the latter is far more interesting.
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boygenious
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Report 16 years ago
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(Original post by imasillynarb)
Basically, when two particles collide and they coalesce, if you are asked to find the momentum change(Impulse) on one of them, do you use the mass before collision as the mass after collision, or do you use the new coalesced mass?
coalesced mass, but remember that they both have the same velocity now
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