Crumple zone and parachute: what they have in common

1. Step 1. Crumple zone — uses — Conservation of energy. The crash energy goes into deformation rather than into the passengers.
2. Step 2. Conservation of energy — is used in — Yo-yo. Potential → kinetic energy.
3. Step 3. Yo-yo — has part — Rope. A thread.
4. Step 4. Rope — is part of — Parachute. The lines are ropes.

Open Evothings