# data[].attributes.body
The distance of the Helicarrier is about 4.92 meters and for this roller coaster, we did 3 test to help use find the average speed of the Helicarrier.

-The first test had a time of 2.2 seconds, meaning the speed will be 2.23 m/s

-Our second test had a time of 2.1 seconds, meaning the speed will be 2.3 m/s

-Finally our third test had a time of 2.39 seconds, meaning the speed will be 2 m/s

-Overall, the average time is 2.2 seconds, meaning the average speed is 2.23 m/s

Also, the amount of potential energy used for the Helicarrier is about, 0.09 joules and the amount of kinetic energy is about 0.007 joules.

# data[].attributes.body
How does a roller coaster continue to move through the twists and turns of a track if it only uses an engine at the very beginning?

The reason is because the cart holds a lot potential energy at the beginning. Then once the cart falls, it releases a large amount of kinetic energy.

# data[].attributes.body
Batwing- A heart-shaped roller coaster(turn riders upside down)

Butterfly Inversion- Starts with normal loops, but as the track goes up it twist 45 degrees

Camel-back- There's a hill/bump

Cobra Roll- Rider traverse forward through an upward half-vertical loop

Corkscrew-Rotates riders 360 degree perpendicular to the track

Hammerhead Turn- Turns a 180 degree overbank turn

Heartline Roll- The rider performs a 360 degree roll near the middle

Horseshoe- 180 degree turnaround with high banking so that riders are titled at a 90 degree angle

Immemlman Loop- half loop, then go through a half twisted and curve out into the opposite direction

Pretzel Loop- Downward half loop and upward loops

Raven Turn- half inversion which look like half a loop followed by a drop and then comes to the where it was at the beginning

Sea Serpent Roll- Turns 180 degrees

Top Hat- A hill with 90 degree angles ascent and descent

# data[].attributes.body
-Viper(a slithering serpent with serious bite)

One of the tallest and fastest looping coaster

Red and white steel

188 feet and slithers down 70 miles per hour

-Superman: Escape from Krypton

415 feet high

0-100 miles per hour in 7 second

# data[].attributes.body
Built in the 17th century, one of the oldest roller coaster was made. Near the Saint Peters-burg, Russian Mountain, which was mainly constructed on hills with ice. This was built to a height between 70 feet (21 m) and 80 feet (24 m), with a 50 degree drop.

Soon, a mining company in Sumit Hill, Pennsylvania constructed the Mauch Check Gravity Railroad in the 1850's. With a 8.7 mile (14 km) downhill track and a brakeman-controlled. At first, it was used to bring coal and other materials to the mines and out. Then in 1872, the "Gravity Road" provided a thrilling ride for only 50 cent a ride.

Popularity grew on roller coasters in the 1880's. Roller coaster were being left to right, for example the Loop the Loop, and the Flip Flap Railway. However, these rides were dangerous, many passengers suffered whiplash. So, those roller coasters were dismantled and looping coasters had to wait for over half century for their comeback.

In 1912, a man name John Miller created the first under friction roller coaster. Then, roller coasters spread to amusement parks all over the world. For example Six Flags and Disneyland

Finally, in 1959, Disneyland introduced a new design break through in roller coaster with the Matterhorn Bobsled. The first roller coaster using tubular steel tracks. What makes this ride special? The steel tracks, the steel tracks can be bent in any direction, which allows designers to create loops, corkscrews, and many other maneuvers into their design.

# data[].attributes.headline
Potential and Kinetic Energy in Roller Coaster

# data[].attributes.subject
Potential and Kinetic Energy in Roller Coaster

# data[].attributes.body
It seems that when the roller coaster goes up, there seems to be more potential energy. When going up, the roller coaster stores potential energy inside itself. Then, when the roller coaster goes down, it releases all the potential energy inside it. Causing the roller coaster to create kinetic energy. However, even though both kinetic energy and potential energy are changing, the time is still the same through out the ride.

# data[].attributes.body
1 Joule shows the amount of 1 energy

# data[].attributes.body
These two equations will help caulate kinetic and protential energy.

# data[].attributes.body
The energy if position. After creating kinetic energy all the energy wil be stored into the object that is moving. Causing to stop moving, or called potential energy.

# data[].attributes.body
The energy of movement. When one object is moving, is called kinetic energy and this allows other objects to move!

# data[].attributes.headline
How is Friction related to Roller Coasters?!

# data[].attributes.subject
How is Friction related to Roller Coasters?!

# data[].attributes.body
Friction is resistance and friction is used in roller coasters so that the roller coaster doesn't go too fast when going down or anywhere during the ride.

# data[].attributes.body
By Katherine Van

(I don't own any of these pictures)

# data[].attributes.body
Acceleration-Objects that are changing their speed or their direction; a rate at which the speed or direction changes

Centripetal and Centrifugal Force- Motion along a curve or though a circle is always caused by a centripetal force

G- A "G" is a unit of acceleration equal to the acceleration caused by gravity

Momentum- Quality of motion that object possesses

Weightless- the rider no longer feel an external force acting upon their bodies

-Acceleration is used in roller coasters by increasing or decreasing the speed and angle of the roller coaster.

-Centripetal and Centrifugal Force in roller coasters are the loopy lops.

-I think G's helps with roller coasters because they help the passengers to say on their seats when there's a sudden drop or when their upside down.

-Momentum is used so that he roller coaster can continue on the rails.

-You sometimes feel weightless when you are going down a drop. Riders might feel weightless, but really they aren't.