## What is the acceleration of the roller coaster?

Most roller coasters have acceleration between 2 g and 5 g. At the top of the loop, the gravity force is directed inward and thus, there is no need for a large normal force in order to sustain the circular motion.

### How are vectors used in roller coaster?

Forces are described by vectors. Vectors have both magnitude and direction. When more than one force acts on a roller coaster (e.g., the gravitational force and the normal force), you have to add forces using vector arithmetic. You can always do this with a vector diagram.

**Does a roller coaster have constant acceleration?**

As the coaster gains height, it loses speed. With this lower speed, the curvature of the track can be decreased to keep the needed centrifugal acceleration. We know that the centripetal acceleration is proportional to v2/r, as the velocity reduces then we can decrease the radius to keep the acceleration a constant.

**Where is the positive acceleration on a roller coaster?**

If the acceleration is in the same direction as the velocity, the speed increases and the acceleration is positive.

## What forces act on a roller coaster?

A roller coaster is a machine that uses gravity and inertia to send a train of cars along a winding track. The combination of gravity and inertia, along with g-forces and centripetal acceleration give the body certain sensations as the coaster moves up, down, and around the track.

### What type of motion is a roller coaster?

Circular motion (or merely motion along a curved path) requires an inwards component of net force. If all the forces that act upon the object were added together as vectors, then the net force would be directed inwards.

**What parts of the roller coaster ride demonstrate acceleration?**

At the top of a roller coaster, the car goes from moving upward to flat to moving downward. This change in direction is known as acceleration and the acceleration makes riders feel as if a force is acting on them, pulling them out of their seats.

**What forces act on roller coasters?**

## What forces are acting on a roller coaster?

Neglecting friction and air resistance, a roller coaster car will experience two forces: the force of gravity (Fgrav) and the normal force (Fnorm). The normal force is directed in a direction perpendicular to the track and the gravitational force is always directed downwards.

### What will happen when a roller coaster suddenly accelerates forward?

As the roller coaster speeds up (positive acceleration) racing downhill or turning abruptly, the amount of force a rider fells increases. As the roller coaster slows down (deceleration) due to friction between the wheels and the track or air rushing by, the forces a rider feels ease off.

**What forces cause the roller coaster to speed up and slow down?**

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.

**What forces are involved in a roller coaster?**