Question

Consider a system to be two train cars traveling toward each other.
What is the total momentum of the system before the train cars collide?
kg • m/s

What must the total momentum of the system be after the train cars collide?
kg • m/s

Answer 1

Given:

Consider a system to be two train cars traveling toward each other.

To find:

What is the total momentum of the system before the train cars collide? kg • m/s

What must the total momentum of the system be after the train cars collide? kg • m/s

Solution:

From given, we have,

A system to be two train cars travelling toward each other.

As the train and car travelling towards each other,

As in this case, there is motion and no external force on acting on them while they collide

So the momentum of the two cars is always conserved.

The momentum before collision will be the same as the momentum after the collision.

The moment is given by,

p = m1v1 - m2v2

where m1, m2 are the masses and v1, v2 are the velocities of train and car.

Answer 2

Answer:

2,400

Explanation:

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