For a billiard ball to have linear momentum, it must have been communicated to it in some way. If we observe someone playing billiards, it is obvious that the linear momentum acquired by the ball depends on the knock it receives from the cue.

We also observe that linear momentum varies after a collision with another ball or with the side of the table. 

The magnitude that measures the variation of linear momentum is called impulse.  

In the next visual, we will measure the impulse that a billiard ball receives. If you carry out the tasks proposed, you will find out for yourself how to measure the impulse received by a particle.