Stopping distance = (Speed^2) / (2 * Coefficient of friction * Gravitational acceleration)
Given that the car is traveling at a speed of 20 mph, which is approximately 8.94 meters per second (m/s), and assuming an average coefficient of friction of 0.7 and a gravitational acceleration of 9.8 m/s², we can calculate the stopping distance as follows:
Stopping distance = (8.94 m/s)^2 / (2 * 0.7 * 9.8 m/s²)
Stopping distance ≈ 16.8 meters
Therefore, the stopping distance of a car traveling at 20 mph is approximately 16.8 meters.
