A jet engine gets its thrust by taking in air, heating and compressing it, and
then ejecting it at a high speed. If a particular engine takes in 20 kg of air per
second at 100 m/s, and ejects it at 500 m/s, calculate the thrust of the engine.

Thrust is known as a reaction force which appears when a system expels or accelerates mass in one specific direction. If we know the acceleration and the mass of the air expelled by the jet engine, we can compute the thrust .

The acceleration is calculated by using the dynamics formula

[tex]\displaystyle a=\frac{v_f-v_o}{t}[/tex]

The values are

[tex]v_f=500\ m/s,\ v_o=100\ m/s,\ t=1\ sec[/tex]

[tex]\displaystyle a=\frac{500-100}{1}=400\ m/s^2[/tex]

The thrust is

[tex]F=ma=20\ Kg\ 400\ m/s^2=8,000\ Nw[/tex]

A jet engine gets its thrust by taking in air, heating and compressing it, andthen ejecting it at a high speed. If a particular engine takes in 20 kg of air persecond at 100 m/s, and ejects it at 500 m/s, calculate the thrust of the engine.​

Respuesta :

Otras preguntas

A jet engine gets its thrust by taking in air, heating and compressing it, and
then ejecting it at a high speed. If a particular engine takes in 20 kg of air per
second at 100 m/s, and ejects it at 500 m/s, calculate the thrust of the engine.