Question

Водитель грузовика который ехал со скоростью 60 км наблюдал то как поезд проехал мимо него в течении 8 секунд. Чему равна длина поезда, если он двигался со скоростью 66 км/ч ? Указание: длина поезда равна расстоянию, которое проехали оба транспорта за 8 секунд

Answer 1

66:8=8.25 метра длина поезда

Answer 2

Calculation of Train Length

To calculate the length of the train, we need to determine the distance traveled by both the truck and the train in 8 seconds.

Given: - The truck was traveling at a speed of 60 km/h. - The train took 8 seconds to pass the truck. - The train was moving at a speed of 66 km/h.

To find the distance traveled by both the truck and the train in 8 seconds, we can use the formula:

Distance = Speed × Time

Let's calculate the distance traveled by the truck and the train separately.

Distance traveled by the truck: - Speed of the truck = 60 km/h - Time = 8 seconds

Converting the speed from km/h to m/s: - Speed of the truck = 60 km/h = (60 × 1000) m/3600 s = 16.67 m/s

Calculating the distance traveled by the truck: - Distance = Speed × Time = 16.67 m/s × 8 s = 133.36 meters

Distance traveled by the train: - Speed of the train = 66 km/h - Time = 8 seconds

Converting the speed from km/h to m/s: - Speed of the train = 66 km/h = (66 × 1000) m/3600 s = 18.33 m/s

Calculating the distance traveled by the train: - Distance = Speed × Time = 18.33 m/s × 8 s = 146.64 meters

Therefore, the length of the train is equal to the distance traveled by both the truck and the train in 8 seconds, which is the sum of their distances:

Length of the train = Distance traveled by the truck + Distance traveled by the train = 133.36 meters + 146.64 meters = 280 meters.

So, the length of the train is 280 meters.