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.

The person keeps going until stopped by something. In a real vehicle, it could be the windshield...

or the instrument panel...

or the safety belts! With safety belts, you slow down as the vehicle does. You get more time to stop. You stop over more distance, and your strongest bones take the forces. That is why safety belts make such good sense.
See also:
Speedometer and Odometer
The speedometer lets you see your speed in
both miles per hour (mph) and kilometers per
hour (km/h).
The odometer shows how far your vehicle has
been driven, in either miles (used in the United
...
Passenger Sensing System
The vehicle has a passenger
sensing system for the front
outboard passenger position. The
passenger airbag status indicator
will light on the instrument panel
when the vehicle is started.
...
Airbag System
The vehicle has the following airbags:
► A frontal airbag for the driver.
► A frontal airbag for the right front passenger.
► A seat-mounted side impact airbag for the driver.
...
