Asoccer ball collides with another soccer ball at rest. the total momentum of the balls
a. is zero.
b. increases.
c. remains constant.
d. decreases.

In case of elastic collisions, the total momentum of the objects participating in the collision remains constant.

Option C

Explanation:

The world of physics has many conserved quantities and the momentum is amongst them. According to Newton’s third law, whenever there is an elastic collision between any two objects, one object draws force on the other object and as a result the latter exerts an equal and the opposite forces on the former cancelling the effect of force on each other.  

When a moving ball with velocity and collided with another ball at rest, it applied the force on a ball. In general, the ball at rest exerts an equal and the opposite forces on the first ball and the complete momentum remains conserved.

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explanation:

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