What happens when two objects collide with each other?
A. The sum of their momentums after the collision is equal to the sum of their momentums before the collision B. The momentum before the collision is always greater than the total momentum after the collision C. The object with greater mass always has greater momentum D. They both lose momentum at the moment of impact
The answer to this is A. The sum of their momentums is still the same with the sum of their momentums before they have collided with each other. There can be slight differences with their momentum depending on the sizes of the objects that will collide with each other. The speed of the objects will be a factor. The other factor has to be the size of the objects that will hit each other.
When a large object collides with a smaller object, expect that the larger object will have a higher momentum as compared to the smaller object. An object with a higher speed may be stopped when it hits a bigger object or the effect of the collision will be more felt by the object with higher speed.