if say I have two carts that is initially at rest, one of the cart has a plunger and the plunger is set so that it's against the other cart. When I release the plunger both carts will travel at a certain velocity.(adsbygoogle = window.adsbygoogle || []).push({});

The law of momentum conservation says that the momentum of the initial system is the same as the momentum of the final system.

As far as my understanding goes, the momentum before the what we can say "collision" is 0 as both carts has an initial velocity of 0, as they start from rest. While on the other hand the momentum after collision (after I release the plunger) is some number, as the velocity is not 0. So how is it possible that law of momentum holds here?

p initial is not equal to p final

I use p to denote momentum here.

Can someone please help me to clear my understanding

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# Experimental questions about the law of momentum

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