How fast is a car going that leaves skid marks of 230 feet?

To estimate the speed of a car that leaves skid marks of 230 feet, we can use the formula derived from the physics of stopping distance: ( v = \sqrt{2g d} ), where ( g ) is the acceleration due to gravity (approximately 32.2 ft/s²) and ( d ) is the skid distance in feet. Plugging in the values, we get ( v = \sqrt{2 \times 32.2 , \text{ft/s}^2 \times 230 , \text{ft}} ), which results in a speed of about 61.6 feet per second, or approximately 42 mph. Therefore, the car was likely traveling around 42 mph when it began skidding.