Why Safety Belts Work - GMC 2003 GMT560 T-Series Owner's Manual

Why Safety Belts Work

Q:
Aren't safety belts for kids?
A:
Yes. And they are for adult truckers, and anyone
else who rides in your vehicle.
Here's why: when your vehicle goes, say, 30 mph
(50 km/h), so do you and your passengers.
1-6
If the vehicle hits something, it stops – right then. But
nothing stops the people. They keep moving.