Question

Два мальчика побежали навстречу друг другу по спортивной дорожке длина которой 100 метров они встретились через 10 секунд 1 мальчик бежал со скоростью 4 метров секунду С какой скоростью бежал второй мальчик

Answer 1

100 / 10 = 10  м/с    скорость сближения, равная сумме скоростей
10 - 4  = 6 м/с   скорость второго мальчика

Answer 2

10*4=40м пробежал 1 мальчик
100-40=60м пробежал 2 мальчик
60:10=6м/с скорость 2 мальчика

Answer 3

Problem Analysis

Two boys are running towards each other on a sports track that is 100 meters long. They meet each other after 10 seconds. The speed of the first boy is given as 4 meters per second. We need to determine the speed of the second boy.

Solution

To find the speed of the second boy, we can use the formula: speed = distance / time.

The distance covered by the first boy is half of the total distance, as they meet in the middle. So, the distance covered by the first boy is 100 meters / 2 = 50 meters.

The time taken by both boys to meet is given as 10 seconds.

Using the formula, we can calculate the speed of the second boy as follows:

speed of the second boy = distance / time = 50 meters / 10 seconds = 5 meters per second.

Therefore, the second boy ran with a speed of 5 meters per second.

Answer

The second boy ran with a speed of 5 meters per second.