Question

386. Поезд проехал 36 км за 40 минут. Определите его скорость в мет- рах в секунду.​

Answer 1

Ответ:

15

Пошаговое объяснение:

36 км = 36000 м

40 минут = 2400 сек

36000/2400=15 м/с

Answer 2

Ответ:

15м/ сек

Пошаговое объяснение:

Переведем км в м      36км=36000м

Переведем мин в сек     40 мин = 2400 сек

дано:

S=36000м

t= 2400сек    

v=S/t

36000/2400=15м/сек

Answer 3

Problem Analysis

We are given that a train traveled a distance of 36 km in 40 minutes. We need to determine its speed in meters per second.

Calculation

To calculate the speed of the train, we can use the formula:

Speed = Distance / Time

Given that the distance is 36 km and the time is 40 minutes, we need to convert the distance to meters and the time to seconds before plugging them into the formula.

1 kilometer (km) is equal to 1000 meters (m), so the distance in meters is:

Distance = 36 km * 1000 m/km = 36,000 m

1 minute (min) is equal to 60 seconds (s), so the time in seconds is:

Time = 40 min * 60 s/min = 2400 s

Now we can calculate the speed:

Speed = 36,000 m / 2400 s = 15 m/s

Answer

The speed of the train is 15 meters per second.

Explanation

The train traveled a distance of 36 km in 40 minutes. To convert the distance to meters, we multiplied 36 km by 1000 m/km, resulting in 36,000 meters. To convert the time to seconds, we multiplied 40 minutes by 60 s/min, resulting in 2400 seconds. Finally, we divided the distance of 36,000 meters by the time of 2400 seconds to find that the speed of the train is 15 meters per second.