Kinetic Energy

Placeholder seed content — compiled MDX from _knowledge/ will replace this in a later milestone (MS-1 sheet compiler → books compiler pipeline).

The core idea

Anything that moves carries kinetic energy — the energy of motion.

KE = \frac{1}{2} m v^2

Double the mass → double the KE. Double the speed → quadruple the KE. That’s why car crashes at 60 km/h are so much worse than at 30 km/h, even though the speed only doubled.