1. The problem statement, all variables and given/known data When riding a roller coaster, when you enter a double helix why does it feel as if you're speeding up? I'm in the rotational dynamics section, so the answer will most likely be about Conservation of Angular Momentum or something along those lines. I am really interested but I just can't feel confident about any of my answers. 2. Relevant equations 3. The attempt at a solution It is because the conservation of Angular Momentum, it gives the allusion of the roller coaster speeding up.