1. The problem statement, all variables and given/known data You are riding a Ferris wheel 120 feet in diameter. It makes one complete revolution every minute. How fast are you falling when you are halfway to the bottom? 2. Relevant equations None 3. The attempt at a solution I really am not sure where to start. I'm actually not even completely sure what the question is asking...I'd think this would be a related rates problem, but the velocity is always constant. I tried setting up the parametric equations y=sin t and x=cos t and taking the derivatives of them...but that didn't really help. Also, when I'm half way to the bottom, the tangent to the Ferris wheel is vertical and I have the greatest velocity.... Any ideas?