Up Down then a Loop, its a rollercoaster

In kinematics, we learn about the displacement, velocity, and acceleration. All of these variables help measure/find the distance, speed and acceleration of a object aka the roller coaster.
  
However also take in to conclusion Newton's 3 laws

Newton's first law: All objects will remain in a state of rest or continue to move with a constant velocity unless acted upon by an unbalanced force.

Newton's second law: The acceleration of an object depends inversely on its mass and directly on the unbalanced force applied to it.

Newton's third law:  For every action force, there is an equal and opposite reaction force. 

2 of the coolest coasters are ( I wish to ride them one day)

Underwater Roller Coaster

Vanish roller coaster at Cosmo Land in Japan unexpectedly dives into an underwater tunnel.

Kingda Ka Roller Coaster

Located at Six Flags Great Adventure in New Jersey, it is the tallest and fastest roller coaster in the world. The train is launched by a hydraulic launch mechanism to 128 miles per hour (206 km/h) in 3.5 seconds.