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The sum of the momentums.

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Q: Ball A bumps into Ball B Which is the same before and after the collision?
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What is the same before and after the collision when Ball A bumps into Ball B?

The total momentum of the two balls.


A baseball flies through an open window and collides with a vase The momentum of the ball and vase after the collision is?

A baseball flies through an open window and collides with a vase. The momentum of the ball and vase after the collision is the same as the momentum of the ball alone before the collision.


Did the catcher and ball together have the same speed as the ball alone after colliding?

No. The thing that is the same before and after the collision is the total momentum.


If a moving ball rolls into a stationary ball the total momentum of both balls after the collision will be?

By the Law of Conservation of Momentum, the total momentum after the collision must be the same as the total momentum before the collision.


What is the difference between an elastic collision and an inelastic collision?

No loss in energy due to collision is for elastic collision. But there will be a loss during collision in case of in-elastic collision. So KE will remain constant before and after collision in case of elastic collision.


What is the total momentum of marbles after the collision?

The same as the total momentum before the collision.


How momentum is conserved in pair production before and after collision?

That means that total momentum doesn't change. It is the same before and after the collision.


When a toy truck collides into a toy carthe momentum of what is the same before and after the collision?

The sum of the momentum of the two toys before the collision will be the same as the momentum of the two toys after the collision except for some losses due to heat dissipation and frictional losses.


What is the momentum of marbles after collision?

Same as before the collision. This applies whether the collision was elastic (no loss of kinetic energy) or inelastic (some kinetic energy lost).


What happens to the total momentum of two objects in a system before and after interactions?

The total momentum before the collision is the same as the total momentum after the collision. This is known as "conservation of momentum".


What is the formula for momentum ti find the momentum of each ball before and after the collision and assume the mass of each ball is 0.4 kg?

You didn't supply enough information to solve this problem. Two formulae are important to solve problems with momentum: (1) the definition of momentum: momentum = mass x velocity. (2) the total momentum (sum of individual momenta) before and after the collision must be the same.


What factors do you think may cause there to be a difference between the momentum before and the momentum after the collision?

There is a Law of Conservation of Momentum, which states that total momentum is always conserved. In this case, that means that - assuming no additional bodies are involved - the total momentum before the collision will be the same as the total momentum after the collision. It doesn't even matter whether the collision is elastic or not.