Setups other learners found interesting in Ball Acceleration. Try one, then tweak it.
A ball is pulled toward your cursor: the further away the cursor, the longer the ball accelerates and the faster it is moving when it arrives. This is a hands-on picture of Newton's second law — a constant force produces a constant acceleration, and acceleration is the rate at which velocity changes, not the velocity itself.
Read the full theory: How does a ball accelerate toward a target? →