A person walks along the road at a speed of 5 km / h. How long does it take to cover 550 m?

Given:

v = 5 km / h (kilometers per hour) – human speed;

l = 550 meters – track section.

It is required to determine t (seconds) – for what period of time a person will pass a section of the path equal to l.

Since the condition of the problem is not specified, we assume that the person is moving at a constant speed.

Let’s convert the units of measurement of speed to the SI system:

v = 5 km / h = 5 * 10/36 = 50/36 = 1.4 m / s (the result has been rounded to one decimal place).

Then, to determine the time, you must use the following formula:

l = v * t, from here we find that:

t = l / v = 550 / 1.4 = 392.9 seconds.

Answer: a person will cover a distance of 550 meters in 392.9 seconds.