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Collisions
Zelos:
it aint possible to messure it EXACLY on earth. but it is in space and I think they have done it. and I know im right shvarz, wasent it you who know much about science? and the law of conservation tells that momentum cant disaphere or come from nowhere. man ur so 3 dimensianal shvarz
PurpleYouko:
Nobody ever said you could make momentum from nothing or disipate it to nothing.
Al we have been saying is that it is impossible to know if the entire momentum in a given system is zero. All we know is that the momentum in the system remains unchanged
If your entire system is on board a speeding spacecraft then its net momentum is shitloads but if it is stationary (with respect to what though?) then it could be zero.
There is just absolutely no way to know what the total momentum for any system is since it is also impossible to know the absolute velocity of any object anywhere. As you are so fond of saying, it's all relative.
Zelos:
thats what ive been saying, but I have gone from the thought that its most likly to start whit 0 momentum if we start whit a big bang
Botsareus:
zelos are you saying this:
A is still
B is moving toward A
B(300jingleballs\spuclick) is the speed of B
A<---------------B(300jingleballs\spuclick)
results in
A(0jingleballs\spuclick)B(0jingleballs\spuclick)
?
Zelos:
ok, bot, use SI units for everything and not the freaking mph, I dont use km/h, do I?
no what im saying is that
AB
a throw away object be and A/B is equal heavy. And B gets V 5m/s then A will get 5m/s in the other direction
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