this is part of my rube goldberg machine
there are a couple of minor errors, but each step was achieved as planned.
building up momentum and driving the energy forward is key. the ball at the beginning does wobble a bit, showing that some of the energy was retained once impacting the second ball, but overall, I'm happy with how it turned out.
the final product will have the final ball go up and over a ramp. I am still working on ways to improve the velocity so this last step is achived.