Car Crash Force

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Calculate the average impact force during a vehicle collision.

Crash Parameters

Vehicle Mass (m) (kg)

Pre-Impact Velocity (v)

Stopping Distance (d) (meters)

Calculation Results

Enter crash parameters

About this calculator

Quick Reference

FAverage Impact Force (Newtons)

mVehicle Mass

vVelocity at Impact

dStopping Distance

Overview

In a collision, kinetic energy is dissipated over a very short distance. This calculator estimates the average force based on the work-energy theorem.

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Pro Tips

The 'crumple zone' of a car increases the stopping distance (d), which drastically reduces the impact force.
Force increases with the square of the velocity—doubling your speed quadruples the impact force.
Always wear seatbelts; they extend your deceleration time and distance, saving lives.

Fun Facts

"A car hitting a wall at 50 km/h is roughly equivalent to falling from a 3-story building."
"The average impact duration in a serious car crash is only about 100 milliseconds."
"Modern cars are designed to be destroyed in a crash; the energy spent bending the metal is energy NOT spent on the passengers."

Formula: F = (m × v²) / (2 × d)