Cadillac 2010 SRX Crossover - Manual (Page 48)

2-14 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. Get it up to speed. Then stop the
vehicle. The rider does not stop.