How seat belt works ??

Question

If there is a collision from the back of the car,

the passenger at the back will become human projectiles,

how did seat belt protect him ?

I think the seat belt get tight when it hit the brake,

if the driver do not know a car collision from the back,

will the passenger at the back get hurt ?

Answer 1

you have a betterchance of not being injured wearing a seat belt. But it is no guarantee.

Answer 2

During a crash, properly fastened safety belts distribute the forces of rapid deceleration over larger and stronger parts of the person's body, such as the chest, hips and shoulders.

The safety belt stretches slightly to slow your body down and to increase its stopping distance.

Answer 3

Seat belts get tight when you hit the brake because there is a pendulum inside of the belt retractor mechanism.

If someone is in the back seat of a car, and isn't wearing their seatbelt, then yes - they can seriously injure themselves and the people in the front seat when they become a human projectile.

This doesn't necessarily happen in a 'rear-end' accident though, because the force of being rear ended is going to push everyone back into their seats rather than throw them forward (although they will probably flop forward a bit afterward).

Whether or not someone sustains injuries (and the severity of those injuries) is entirely dependent on the type of vehicle, the type of seatbelts (and obviously whether or not you are wearing them), how fast both cars are moving, where the point of initial impact is, and any additional impacts (immovable objects, such as trees, poles, concrete barriers, etc).

I watched a Mustang t-bone an Oldsmobile once.  The Olds (piloted by an old woman) had tried to dart across traffic, when the 'Stang came flying along, girl on the cell phone, and hit the old lady so hard that it picked the Olds completely up off the ground and threw it into the center divider - with a Mustang front end shaped dent, and an unconcious old lady with her face laying on the glass.

Me and the guy in front of me jumped out - he threw me his cell, which he had already used to dial emergency.  He ran over to the Olds, and I went towards the Mustang, where I found the girl - relatively unhurt, and STILL ON HER CELLPHONE crying about 'how I just got in a wreck' to whoever she had been babbling to when she didn't notice the Olds.

It took every ounce of self-control in my body to keep from grabbing the cell phone and throwing it across the street.

Answer 4

Seat belts work because they keep the people from becoming human projectiles.