Sorry but what do you mean by extension? The person in restraint has traveled distance L, does the belt stretch by 4 times the travel distance?
How did you work it out to be 1/4?
Is it because the person is held back at 4 points (shoulder, belt shoulder side hip, upper right hip, lower...
Hi all,
I'm having an online discussion and curious to know about the forces a 3-point seat belt has on a car.
One guy is fitting this retractable belt to his car.
The retractor and anchor mount at one bolt hole, the anchor is off centre, it attaches via a steel extension piece, the section...