Why Safety Belts Work
When
you
ride in
or
on anything,
you
go
as
fast
as
it goes.
For
example, if
the
bike is going
10
mph
(16
km/h),
so
is
the
child.
When the bike hits the
block,
it
stops. But the
child keeps going!
Take the simplest
vehicle. Suppose it’s
just
a seat on
wheels.
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