How many tenths of a second equates to how many car lengths?

Answer 1

That depends on vehicle speed. At 60 mph a vehicle covers 88 feet in one second. It also depends on the length of the car, but assuming the average car is 15 feet in length, it takes less than 2 tenths of a second to travel one "car length" at 60 mph. So in one second, the average car covers almost 6 car lengths! Double the speed - 120 mph - and that same car covers 176 feet in one second; more than half the length of a football field.