Enter the velocity of a car and the coefficient of friction between the tires and the road into the calculator to determine the stopping distance.

## Stopping Distance Formula

The following formula is used to calculate the stopping distance of a moving object.

D = v^2 / (2*u*g)

• Where D is the stopping distance (m)
• v is the velocity (m/s)
• u is the coefficient of friction
• g is the acceleration due to gravity (9.8 m/s^2)

## FAQ

What is a stopping distance?

A stopping distance is a term usually applied to cars that describes the total amount of distance to stop when a car brakes from a certain speed. The formula above assumes constant friction, which may not be the case if the car’s wheels are rolling then start to slide and vice versa.