Question

В 11 ч с аэродрома вылетели одновременно в противоположных направлениях два самолета в 14 ч расстояние между ними было 3540 км один из них летел со скоростью 620 км/ч .С какой скоростью летел другой самолет

Answer 1

620*3=1860 км - пролетел 1 самолет
3540 - 1860=1680 км - 2 самолет
1680:3= 416 км/ч - скорость 2 самолета

Answer 2

14 -11 = 3ч -были  в пути 
620 х 3  = 1860 км  -пролетел 1 -ый
3540 -1860 = 1680 км - пролетел 2 -ой
1680 : 3 =560 км/ч - скорость второго самолета

Answer 3

Calculating the Speed of the Second Plane

To calculate the speed of the second plane, we can use the formula:

Speed = Distance / Time

Given: - The distance between the two planes is 3540 km. - The first plane's speed is 620 km/h.

We need to find the time it took for the two planes to be 3540 km apart. Then we can use this time to calculate the speed of the second plane.

Calculating the Time Taken

To find the time it took for the two planes to be 3540 km apart, we can use the formula:

Time = Distance / Relative Speed

The relative speed of the two planes is the sum of their individual speeds, as they are flying in opposite directions.

Relative Speed = Speed of Plane 1 + Speed of Plane 2

Finding the Relative Speed

Let's calculate the relative speed of the two planes:

Relative Speed = 620 km/h + Speed of Plane 2

Calculating the Time

Using the formula for time, we can calculate the time it took for the two planes to be 3540 km apart:

Time = 3540 km / (620 km/h + Speed of Plane 2)

Solving for the Speed of the Second Plane

Now, we can solve for the speed of the second plane using the calculated time and the given distance.

3540 km = (620 km/h + Speed of Plane 2) * Time

We can solve for the speed of the second plane using the calculated time.

Conclusion

By using the given information and the formulas for speed, time, and relative speed, we can calculate the speed of the second plane.