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Motion along a curve or through a circle is always caused by a centripetal force. This is a force that pushes an object in an inward direction. In a roller coaster loop, the riders are pushed in towards the center of the loop by forces causing from the car seat (at the loop's bottom) and by gravity (at the loop's top).

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A g is a unit of acceleration equal to the acceleration caused by gravity.If an object is said to experience 3 g's of acceleration, then the object is changing its speed at a rate of about 30 m/s every second.

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Any mass that is in motion has momentum. In fact, momentum depends upon mass and velocity.A train of roller coaster cars moving at a high speed has a lot of momentum.Unless something is at rest it has no momentum.

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Amusement park rides often produce sensations of weightlessness. These sensations result when riders no longer feel an external force acting upon their bodies. At the top of the tower of a free-fall ride, a 100-pound rider would feel 100 pounds of force from the seat pushing as an external force upon her body. The rider feels her normal weight. Yet, as she falls from the tower, the seat has fallen out from under her. She no longer feels the external force of the seat and subsequently has a brief sensation of weightlessness. She has not lost any weight, but feels as though she has because of the absence of the seat force. In this context, weightlessness is a sensation and not an actual change in weight.

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740 cm. in 4.3 Speed: 170.5 Potential energy the marble weighted .005 grams and went down 25 cm. Potential energy was 1.225 Kinetic energy was 72.7

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Abu Dhabi, United Arab Emirates

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Dropbox is a free service that lets you bring your photos, docs, and videos anywhere and share them easily. Never email yourself a file again!

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Pretzel Knot

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The history of  roller coasters stretches back to ice slides builded in 15th century Russia and exspands all the way to the many and variety coasters of today. In between, numerous technology have been introduced to make coasters bigger, faster, and safer than those that came before

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Las Vegas

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PE = mh x (9.8m/s/s)

Kinetic Energy = 1/2 x mass x velocity 2

KE= 1/2 MV2

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Potential is an object that is being pushed or pulled. Kinetic is similar to gravity because it is being pulled down.

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An object that changes speed or direction is acceleration. It relates to roller coasters when, the roller coaster changes direction or speed it is accelerating