Complete these sentences.
If a roller coaster train has a potential energy of $1,500\text{ J}$ and a kinetic energy of $500\text{ J}$ as it starts to travel downhill, its total energy is $2,000\text{ J}$.
Once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to $1,100\text{ J}$, and its potential energy decreases to ____ J.
Once the roller coaster reaches the bottom of the track and is traveling along the ground, its kinetic energy is ____ J.
Options:
- 500
- 900
- 1,100
- 2,000
If a roller coaster train has a potential energy of $1,500\text{ J}$ and a kinetic energy of $500\text{ J}$ as it starts to travel downhill, its total energy is $2,000\text{ J}$.
Once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to $1,100\text{ J}$, and its potential energy decreases to ____ J.
Once the roller coaster reaches the bottom of the track and is traveling along the ground, its kinetic energy is ____ J.
Options: