Question

Из одного пункта в другой одновременно по одной и той же дороге в одну и ту же сторону выехали два велосипедиста Они ехали постоянными скоростями скорость первого 12км/ч. Через час расстояние между велосипедистами оказалось равным 2 км .Какой могла быть скорость второго? (С решением)

Answer 1

2:1=2 км/ч - разность скоростей.
Если первый оказался впереди, то:
12-2=10 км/ч - скорость второго.
Если второй оказался впереди, то:
12+2=14 км/ч - скорость второго.

Ответ: 10 км/ч или 14 км/ч.

Answer 2

Problem Analysis

Two cyclists start from the same point and travel in the same direction along the same road. The first cyclist has a constant speed of 12 km/h. After one hour, the distance between the two cyclists is 2 km. We need to determine the possible speed of the second cyclist.

Solution

Let's assume the speed of the second cyclist is x km/h.

After one hour, the first cyclist has traveled a distance of 12 km (since their speed is 12 km/h). The second cyclist, who started one hour later, has traveled a distance of x km.

The distance between the two cyclists after one hour is given as 2 km. This means that the second cyclist has traveled 2 km less than the first cyclist.

Therefore, we can set up the following equation:

12 km - x km = 2 km

Simplifying the equation, we get:

12 - x = 2

To find the value of x, we can subtract 2 from both sides of the equation:

12 - 2 = x

10 = x

Therefore, the possible speed of the second cyclist is 10 km/h.

Answer

The possible speed of the second cyclist is 10 km/h.