Question

ПОМОГИТЕ СРОЧНО ПЖ! 1) Автомобиль за 12 мин проехал 1500 м, а затем еще 4,5 км проехал за 24 мин. Найдите среднюю скорость Автомобиля.

Answer 1

Ответ:

ответ: 4,5км-4500м 4500+1500=6000 24= 1440сек 12=720сек 1440+720=2160 6000÷2160= 2,7

средняя скорость 2,7м/с

Answer 2

Calculation of Average Speed

To find the average speed of the car, we need to calculate the total distance traveled and the total time taken.

Given information: - The car traveled 1500 meters in 12 minutes. - The car traveled an additional 4.5 kilometers (4500 meters) in 24 minutes.

To calculate the average speed, we can use the formula:

Average Speed = Total Distance / Total Time

Let's calculate the total distance and total time:

1. Total Distance: - The car traveled 1500 meters in the first 12 minutes. - The car traveled an additional 4500 meters in the next 24 minutes. - Therefore, the total distance traveled is 1500 meters + 4500 meters = 6000 meters.

2. Total Time: - The car took 12 minutes to travel the first 1500 meters. - The car took an additional 24 minutes to travel the next 4500 meters. - Therefore, the total time taken is 12 minutes + 24 minutes = 36 minutes.

Now, let's calculate the average speed:

Average Speed = Total Distance / Total Time

Average Speed = 6000 meters / 36 minutes

To convert the average speed to a more common unit, we can convert minutes to hours and meters to kilometers:

1. Convert minutes to hours: - 36 minutes is equal to 36/60 = 0.6 hours.

2. Convert meters to kilometers: - 6000 meters is equal to 6000/1000 = 6 kilometers.

Now, let's calculate the average speed:

Average Speed = 6 kilometers / 0.6 hours

Average Speed = 10 kilometers per hour

Therefore, the average speed of the car is 10 kilometers per hour.