Is Momentum Conserved in a Collision Between Two Charged Planets?

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In a collision between two charged planets of unequal mass, momentum is conserved due to the absence of external forces acting on the system. The discussion emphasizes that, in a closed universe with only these two planets, their interaction does not involve outside influences that could alter momentum. Participants agree that the total momentum before and after the collision remains unchanged. This principle holds true even with the presence of electric charges, as internal forces do not affect the overall momentum conservation. Thus, momentum conservation is affirmed in this hypothetical scenario.
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Homework Statement


Imagine a universe that consists of nothing but two planets of unequal mass. The large planet has a large negative charge and the smaller planet has a large (but different) positive charge. Suppose that at some time these two planets collide. Will momentum be conserved during the collision? Explain.

The Attempt at a Solution



I Think momentum conserved because there no external force.
please help me
 
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Let's imagine it in this universe, far removed from other masses which may disturb them appreciably otherwise. Then, yes, total momentum is conserved, because of the reason you stated.
 

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