1. The problem statement, all variables and given/known data I have created a very simple Rube Goldberg device in Algodoo, and I need to analyze 3 correlating steps within it, using physics descriptives and equations. My primary focus is the ball as it hits the windmill, which I need to describe and calculate its velocity at that stage. Next, I have to analyze the step prior to that: describing and solving for how the balls potential energy, kinetic energy, and momentum are changed during the descent through the ramps and how it translates to the next step; was the total energy conserved when it hit the windmill? Lastly, I need to describe the interaction as the ball after it hits the windmill - how its PE, KE and momentum changed during that interaction and how the total energy was conserved if at all and how it was transferred from one object to another, along with the final conservation of momentum throughout the 3 steps. 2. Relevant equations PE = KE Momentum = Mass(Velocity) PE = (m)(g)(h) Not sure of others that may apply 3. The attempt at a solution As you can see by the attached (I wish I could attach the .phz file to see it in motion), I created my simple machine in Algodoo which is the first part of the assignment. I have been trying to figuring out how to apply the above equations to the system but could not figure out where and how they could be applied, especially since the motion is not singular but contains multiple motions within a set (bouncing back and forth, free falling, projectile, etc). Any help you could provide by steering me in the right direction would be extremely helpful. Mahalo in advance.