Question

два пешехода вышли одновременно в одном направлении из одного пункта Какой формулой можно выразить расстояние s между ними через t часов если скорость одного из них 3 км ч а другого 5 км ч​

Answer 1

1) 5 - 3 = 2 (км/ч) - скорость опережения.
2) 2 · t = 2t (км) - будет расстояние между пешеходами через t часов.
Ответ: а) s = 2t (км) .

Answer 2

Formula for Calculating Distance between Two Pedestrians

To calculate the distance s between two pedestrians who start walking simultaneously in the same direction from the same point, we can use the formula:

s = (v1 - v2) * t

Where: - s is the distance between the pedestrians. - v1 is the speed of one pedestrian. - v2 is the speed of the other pedestrian. - t is the time in hours.

In this case, one pedestrian has a speed of 3 km/h and the other pedestrian has a speed of 5 km/h. Let's calculate the distance between them after t hours using the given speeds.

Calculation

Let's assume that t is the time in hours.

Using the formula s = (v1 - v2) * t, we substitute the given values:

s = (3 - 5) * t

Simplifying the equation:

s = -2t

Therefore, the formula to express the distance s between the two pedestrians in terms of time t is s = -2t.

Please note that the negative sign indicates that the distance between the pedestrians is decreasing over time, as one pedestrian is walking faster than the other.