|Fig. 4-6 The driver who wears a seat-belt (right) collides
with the windscreen in an accident. The driver who wears a seat-belt
is protected by it.
When a car crashes, the passenger will tend to continue
his forward motion at a high speed due to inertia. The passenger will
crash into the front part of the car and get injured seriously. A seat-belt
can protect the passenger. A seat-belt slightly stretches in a collision,
thus it can lengthen the time during which the passenger decelerates and
greatly reduce the impact force.
Article Reading and Class Presentation
- Read the article "The science of seat belt" in
and make a short presentation on how seat-belts can help to prevent internal