Quarter 2, Blogpost #4

This weekend, our blogpost assignment needs to include what we learned from reading Chapter 9: Momentum and Collisions. From reading, I've gained a slight understanding of the meaning of linear momentum. Linear momentum is the product of m (mass) and velocity (v) of an object. In other words, it is the momentum of mass m moving in a straight line with a velocity v. The equation looks like this: p = mv. The SI unit for momentum is kg x m/s. For my picture example, I recreated an example that was given in the book. I had my mom drop a teddy bear and a rubber ball, consisting of the same mass m and the same downward velocity v, causing the two to hit the floor. The teddy bear comes to rest once it hits the floor. It's momentum changes from mv downward to mv upward, in the opposite direction. The rubber ball bounces back upward once it hits the floor with a velocity v. Its change in momentum is 2mv upward. Its direction changes and its momentum is multiplied by two, for its momentum going downward and upward is the same.