According to Newton's third law, is he total momentum the same after two football players collide?

no

Explanation:

because the third law says equal and then opposite ,when the two players collide they move in opposite to themselves and they don't stick together to have the same momentum

c) up

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energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this