Question

Из двух пунктов, удаленных друг от друга на 60 км, выехали одновременно в одном направлении 2 мотоциклиста. Скорость первого 40км\ч, второго 50км\ч. Через сколько часов второй догонит первого?

Answer 1

50-40=10км каждый час будет идти больше 2 мотоцыклист
60/10=6
за 6 засов
прверка:
50*6=40*6+60
300=240+60
300=300

Answer 2

Скорость их сближения= 50-40=10 (км/ч)
Начальная дистанция между ними = 60 км.
Время, за которое второй догонит первого= 60:10=6 (ч)

Answer 3

Problem Analysis

We have two motorcyclists who start at the same time from two points that are 60 km apart. The first motorcyclist has a speed of 40 km/h, and the second motorcyclist has a speed of 50 km/h. We need to determine how many hours it will take for the second motorcyclist to catch up to the first motorcyclist.

Solution

To solve this problem, we can use the formula for calculating the time it takes to cover a certain distance at a given speed:

time = distance / speed

Let's calculate the time it takes for each motorcyclist to cover the distance of 60 km:

- For the first motorcyclist with a speed of 40 km/h: - time = 60 km / 40 km/h = 1.5 hours

- For the second motorcyclist with a speed of 50 km/h: - time = 60 km / 50 km/h = 1.2 hours

Since the second motorcyclist has a shorter time, it means that they will catch up to the first motorcyclist before 1.5 hours.

To find out exactly when the second motorcyclist will catch up to the first motorcyclist, we can subtract the time it takes for the second motorcyclist to cover the distance from the time it takes for the first motorcyclist to cover the distance:

- Catch-up time = 1.5 hours - 1.2 hours = 0.3 hours

Therefore, the second motorcyclist will catch up to the first motorcyclist in 0.3 hours, or 18 minutes.

Answer

The second motorcyclist will catch up to the first motorcyclist in 0.3 hours, or 18 minutes.