Two football players collide on the field. before the collision, their total momentum was 450 kgm/s to the north. what is their total momentum after the collision? a. more than 450 kgm/s north b. 450 kgm/s north c. less than 450 kgm/s north d. 450 kgm/s south

450 kg-m/s north

Explanation:

It is given that, two football players collide on the field. Before the collision, their total momentum was 450 kg-m/s to the north. We need to find their total momentum after the collision.

According to the law of conservation of momentum, initial momentum is equal to the final momentum of the system. Here, the law of conservation of momentum is used. The direction of momentum after collision will be as same as the initial direction.

So, their momentum after the collision will be 450 kg-m/s in the north direction. Hence, the correct option is (c) "450 kg-m/s north".

the answer is a)

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