How long was a pedestrian on the way if he walked 1.8 km at a speed of 1.5 m / s?

The time during which the pedestrian was on the way is calculated using the following formula:

t = S / V, where S is the distance traveled by the pedestrian (according to the condition S = 1.8 km = 1.8 * 10 ^ 3 m), V is the pedestrian’s speed (we consider it constant, V = 1.5 m / s).

Let’s do the calculation:

t = S / V = 1.8 * 10 ^ 3 / 1.5 = 1200 s = 20 minutes.

Answer: The pedestrian was on the way for 1200 seconds or 20 minutes.