To calculate the impact force in a car crash, follow these simple steps:
Measure the velocity at the moment of the impact, v.
Measure the mass of the subject of the collision, m.
Either use:
The stopping distance d in the formula: F = mv²/2d; or
The stopping time t in: F = mv/t
If you want to measure the g-forces, divide the result by mg, where g = 9.81 m/s².
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