Two objects collide, and something is conserved through the whole violent mess. This unit is about finding it — and using it to predict crashes before they happen.
The Path Through Unit 5
Design a container that lets an egg survive a drop from height. The physics isn't luck — it's stretching out the time of impact to shrink the force. Prove it with your own impact-time estimate.
Roll two carts into each other and measure their velocities before and after. Verify that total momentum is conserved — the exact check you'll need to reconstruct a real collision on your own.
You're given skid-mark and dashcam-style data from a two-vehicle collision. Reconstruct what happened, then recommend a real design change — a crumple zone, a bumper redesign — and justify it with your own momentum analysis.