How does the law of conservation of momentum relate to roller coasters?

By the laws of conservation of energy and momentum, however, the total energy of the car cannot exceed the initial given energy. Hence, the first hill must always be the highest, and each subsequent hill cannot exceed the height of the one before it if the car is to successfully go over the peak.



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Most roller coasters run by the Law of Inertia. Since an object at rest stays at rest, all roller coasters have to be pushed or pulled to get started.

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Roller coasters, like everything else, must obey the law of conservation of energy, meaning the train can only go as fast and as far as the amount of stored (potential) energy allows. Potential energy usually comes from lifting the train up a hill with a chain or cable.

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In roller coasters, the two forms of energy that are most important are gravitational potential energy and kinetic energy. Gravitational potential energy is the energy that an object has because of its height and is equal to the object's mass multiplied by its height multiplied by the gravitational constant (PE = mgh).

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Summary. Students explore the physics exploited by engineers in designing today's roller coasters, including potential and kinetic energy, friction and gravity.

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The force of gravity pulling a roller coaster down hill causes the roller coaster to go faster and faster, it is accelerating. The force of gravity causes a roller coaster to go slower and slower when it climbs a hill, the roller coaster is decelerating or going slower.

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The two most important forms for amusement park rides are kinetic energy and potential energy. In the absence of external forces such as air resistance and friction (two of many), the total amount of an object's energy remains constant.

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