2. What type of potential energy does a roller coaster have? Explain. \begin{tabular}{|ll|l|l|}\hline Type your answer here. \end{tabular}

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A roller coaster primarily has gravitational potential energy. This type of potential energy is associated with the height of the roller coaster above the ground.

### Explanation:
1. **Definition of Gravitational Potential Energy**: Gravitational potential energy (GPE) is the energy an object possesses due to its position in a gravitational field. It is calculated using the formula:
   $$
   PE = mgh
   $$
   where:
   - $$ PE $$ is the potential energy,
   - $$ m $$ is the mass of the object,
   - $$ g $$ is the acceleration due to gravity (approximately $$ 9.81 \, \text{m/s}^2 $$ on Earth),
   - $$ h $$ is the height above a reference point (usually the ground).

2. **Role in Roller Coasters**: As a roller coaster climbs to a higher point on the track, it gains gravitational potential energy. When it descends, this potential energy is converted into kinetic energy, which is the energy of motion. The interplay between potential and kinetic energy is what allows roller coasters to move and create thrilling experiences.

In summary, the type of potential energy that a roller coaster has is gravitational potential energy, which is dependent on its height above the ground.
A roller coaster has gravitational potential energy, which depends on its height above the ground.

2. What type of potential energy does a roller coaster have? Explain. \begin{tabular}{|ll|l|l|}\hline Type your answer here. \end{tabular}

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