Newton's first law: NEWTON'S FIRST LAW is the law of of inertia. This states that an object at an object at rest stays at rest , or an object in motions stays in motion until unbalanced forces act upon it . Most roller coasters run by the law of inertia. Since an object stays at rest stays at rest, all roller coasters have to be pushed or pulled to get started. Most are pulled up a large hill called a lift Hill. The first hill is usually the biggest hill. As the cars go uphill, they store potential energy. At the top, the cars have the largest amount of gravitational potential energy. They are about to be put into motion. Roller coaster cars will gain enough energy from the lift hill to be powered through the rest of the ride. Once put into motion, they will no stop until the brakes are applied at the end of the ride.

Newton's Second Law: is the Law of Force and Acceleration. That law states that the acceleration of an object depends on the object's mass and magnitude of the force acting upon it. You feel this Second Law when you start going down the hills. The coaster cars and your body have mass. The gravity provides acceleration which causes force. The rider feels the force as it moves the cars along the coaster track. The track directs the force and the cars. The mass of your body and the coaster cars is constant . The amount of forces changes due to acceleration which in turn are mostly caused by friction. The thrill of acceleration on a roller coaster comes from Newton's Second Law

Newton's third law: of Action-Reaction states that for every action, there is an equal and opposite reaction. This means that as you push down on a seat, the seat pushes back at you.

Newton's Laws