How long does it take for a car moving at a speed of 72 km / h to cover a distance of 100m.

Let us assume by default that the vehicle speed is constant.

Let’s translate the distance that he needs to cover according to the condition of the problem, from meters to kilometers:

1 kilometer is the same as 1000 meters:

100: 1000 = 0.1.

Let us determine how much time it will take for a car to cover a distance of 0.1 kilometers, when from the condition of the task we know that its speed is 72 km / h:

t = l / v = 0.1: 72 ≈ 0.0014.

Answer: To cover this distance, the car needs ≈ 0.0014 h.