Question

Самолет летел 100 км со скоростью 720 км/ ч и затем еще 2 × 10^5 м со скоростью 360 км/ч , определите его среднюю скорость срочно!!!!​

Answer 1

Ответ:

360км/ч

2×10⁵=200км/ч

Answer 2

Calculating Average Speed of the Plane

To calculate the average speed of the plane, we can use the formula for average speed, which is total distance divided by total time. First, we need to find the total distance traveled and the total time taken.

Given: - Distance of first leg of the journey = 100 km - Speed of first leg of the journey = 720 km/h - Distance of second leg of the journey = 2 × 10^5 m (which is 200 km) - Speed of second leg of the journey = 360 km/h

Calculating Total Distance

The total distance traveled is the sum of the distances covered in both legs of the journey.

Total distance = Distance of first leg + Distance of second leg Total distance = 100 km + 200 km Total distance = 300 km

Calculating Total Time

To calculate the total time taken, we need to find the time taken for each leg of the journey and then add them together.

Time taken for the first leg: Time = Distance / Speed Time = 100 km / 720 km/h Time = 5/36 hours

Time taken for the second leg: Time = Distance / Speed Time = 200 km / 360 km/h Time = 5/9 hours

Total time = Time taken for first leg + Time taken for second leg Total time = 5/36 hours + 5/9 hours Total time = 15/36 hours + 20/36 hours Total time = 35/36 hours

Calculating Average Speed

Now, we can calculate the average speed using the formula:

Average speed = Total distance / Total time Average speed = 300 km / (35/36) hours Average speed = 300 km * (36/35) hours Average speed ≈ 308.57 km/h

Therefore, the average speed of the plane for the entire journey is approximately 308.57 km/h.