Action-Reaction Forces in Cart Collisions

Action-reaction forces appear when two carts interact through collisions, pushing, or pulling. The carts used in this experiment have variable masses, which lets students compare how the forces change in different situations.

The first part looks at two wheeled carts as they collide. The goal is ...

Newton's laws of motion are the basis for classical mechanics and describe the relationship between an object and the forces acting upon it.

For example, when a rocket is at rest on the launchpad before launch, the rocket and the ground exert equal-and-opposite forces on one another. To take off, or when the rocket is in space, the expand...