Question

Автомобіль за 15 хв проїхав відстань 24 км, а поїзд за 0,4 год — 36 км. Порівняйте швидкості руху та визначте, на скільки відрізняються швидкості: Виберіть одну відповідь: швидкість автомобіля більша на 3 км/год швидкість поїзда більша на 10 км/год швидкість автомобіля більша на 6 км/год швидкість поїзда більша на 3 км/год

Answer 1

1) автомобиль

V=S/t=24 км/15 мин=24/(1/4 часа)=24*4=96 км/ч

2) поезд

V=S/t=36 км/0,4 часа=90 км/ч

Ответ: скорость автомобиля больше на 6 км/ч.

Answer 2

Comparison of Speeds between Car and Train

To compare the speeds of the car and the train, we need to calculate their respective speeds. We are given that the car traveled a distance of 24 km in 15 minutes, and the train traveled a distance of 36 km in 0.4 hours.

Let's calculate the speeds of the car and the train:

Car Speed: Given that the car traveled a distance of 24 km in 15 minutes, we can calculate its speed using the formula: speed = distance / time.

Converting 15 minutes to hours, we have 15 minutes = 15/60 = 0.25 hours.

Therefore, the speed of the car is: speed = 24 km / 0.25 hours = 96 km/h.

Train Speed: Given that the train traveled a distance of 36 km in 0.4 hours, we can calculate its speed using the same formula: speed = distance / time.

Therefore, the speed of the train is: speed = 36 km / 0.4 hours = 90 km/h.

Comparison of Speeds

Now, let's compare the speeds of the car and the train:

- The speed of the car is 96 km/h. - The speed of the train is 90 km/h.

From the comparison, we can see that the speed of the car is greater than the speed of the train by 6 km/h.

Therefore, the correct answer is: The speed of the car is greater than the speed of the train by 6 km/h.