Comment on rolley chair in the hallway (Newton's 2nd)

To analyze Newton's 2nd Law of Motion, we took a small, simple rolling chair into a long hallway. We tested acceleration, masses, and forces, and how the difference in those things affected different movement. Since Newton's 2nd law says that forces are unbalanced, we experimented. We put different masses of people into the chair, and the heavier the mass, the more difficult it was to accelerate. The smaller the mass, the easier it was to accelerate.

It was also a matter of forces. Some people were weaker than others. The stronger the person, the easier the acceleration, with the weight in the chair still playing a role. The weaker the person, the more difficult it was to acclerate, with the weight still playing a role.

This all showed the unbalanced forces between the weight of the person and chair, the force acted upon the chair, and how the acceleration was affected by those two variables.