What are two uses of roller coasters?

* Amusement park rides: Roller coasters have become a staple of any amusement park, providing a thrilling experience for people of all ages. The winding tracks and sharp drops of roller coasters create a rush of adrenaline and a sense of excitement.

* Education: Roller coasters can also be used for educational purposes. By experimenting with different track designs and parameters, engineers can learn more about physics and engineering. This knowledge can then be applied to other areas of engineering, such as aerospace engineering and civil engineering.