1. The problem statement, all variables and given/known data You've taken your neighbor's young child to the carnival to ride the rides. She wants to ride The Rocket. Eight rocket shaped cars hang by chains from the outside edge of a large steel disk. A vertical axle through the center of the ride turns the disk, causing the cars to revolve in a circle. You've just finished taking physics, so you decide to figure out the speed of the cars while you wait. You estimate that the disk is 4.19 m in diameter and the chains are 7.55 m long. The ride takes 13.9 s to reach full speed, then the cars swing out until the chains are 18.4° from vertical. What is the car's speed? 2. Relevant equations Fr= mv^2/r Ft=gcos(theta)=ma(tangential) Known-> (theta) = 18.4 (radius)= (4.19/2)+7.55 = 9.645 (time) = 13.90s 3. The attempt at a solution I drew a circle and decomposed the components, got the radial axis and the tangential axis equations as shown below: Fr=T + mgsin(theta)=mv^2/R Ft=mgcos(theta) = ma(tangential) For Ft I subbed in all the known values, got a"t" = 9.299m/s^2, then i'm kind of lost, don't really know what's next, but i did gave some thought on the "Angular velocity equation" (Wf=Wi + at/R*(∆t)) figure "Wi" then i should be able to use V=Wr to figure out its velocity... Thankyou for taking the time to read this, it would be great if you guys could guide me through this problem, i would love to learn how to solve it.