Question

3) Какова сила тяги двигателя самолета, летящего с постоянной скоростью 40м/с? Мощность двигателя самолета 200 кВт.

Answer 1

Ответ:

Решение:

N=A/t=Fs/t=Fu; F=N/u

F=N/u=200000 Вт/ 40 м/c= 5000 H= 5кН

Ответ: F=5кН

Answer 2

Calculation of Thrust Force

To calculate the thrust force of an airplane engine, we can use the formula:

Thrust Force = Power / Velocity

Given that the velocity of the airplane is 40 m/s and the power of the engine is 200 kW, we can substitute these values into the formula:

Thrust Force = 200 kW / 40 m/s

Converting the power from kilowatts to watts:

Thrust Force = 200,000 W / 40 m/s

Simplifying the equation:

Thrust Force = 5,000 N

Therefore, the thrust force of the airplane engine is 5,000 Newtons.

Please note that the above calculation assumes ideal conditions and does not take into account factors such as air density, altitude, and engine efficiency, which can affect the actual thrust force of an airplane engine.