See also: https://physics.stackexchange.com/questions/535/why-does-kinetic-energy-increase-quadratically-not-linearly-with-speed https://physics.stackexchange.c

See also: https://physics.stackexchange.com/questions/535/why-does-kinetic-energy-increase-quadratically-not-linearly-with-speed https://physics.stackexchange.com/questions/535/why-does-kin... There's a LOT more energy being transferred into whatever the car hits both because it's going much faster and because it's much heavier.