Cadillac SRX 2011 Owner's Manual page 78

3-16 Seats and Restraints
Why Safety Belts Work
When you ride in or on anything,
you go as fast as it goes.
Take the simplest vehicle. Suppose
it is just a seat on wheels.
Put someone on it.
I n f o r ma t i o n P r o v i d e d b y :
Get it up to speed. Then stop the
vehicle. The rider does not stop.