A firecracker at rest explodes, sending fragments off in all directions. Initially the fire
cracker has zero momentum, but after the explosin the fragments flying of each other have quit a lot of momentum. Hasn't momentum been created ? It not explain why not?
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Initially the firecracker has zero momentum, but after the explosion the fragments flying off each have quite a lot of momentum. ... Sure, there was new kinetic energy put into this system from the explosion, but the momentum still is zero as a result of each piece of the firecracker pushing on every other piece. 7.
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