What is the force exerted by a seat belt in a head-on collision?

Thread starter rebeccc
Start date Sep 15, 2008
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Belt Collision

AI Thread Summary

In a head-on collision, a car decelerates from 22 m/s to 0 m/s in 0.18 seconds, resulting in significant force exerted on the driver. The driver's mass is 75 kg, and the calculation of force involves using Newton's second law and the change in velocity over time. The seat belt applies a force to restrain the driver, preventing injury during the abrupt stop. Understanding the dynamics of this scenario highlights the importance of seat belts in vehicle safety. The discussion emphasizes the critical role of physics in assessing collision impacts.

Sep 15, 2008

rebeccc

In a head-on collision, a car stops in 0.18 from a speed of 22 . The driver has a mass of 75 , and is, fortunately, tightly strapped into his seat.

What force is applied to the driver by his seat belt during that fraction of a second?

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Sep 15, 2008

alphysicist

Science Advisor

Hi rebeccc,

What have you tried so far?

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