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A jet engine works on the principle of conservation of
- a)linear momentum
- b)angular momentum
- c)energy
- d)mass
Correct answer is option 'A'. Can you explain this answer?
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A jet engine works on the principle of conservation ofa)linear momentu...
Conservation of Linear Momentum in a Jet Engine
Jet engines work on the principle of conservation of linear momentum. This principle states that the total linear momentum of a system remains constant unless acted upon by an external force. In the case of a jet engine, the system includes the engine itself, the air it takes in, and the exhaust gases it expels.
Explanation:
When a jet engine is running, it takes in a large amount of air and compresses it. This compressed air is mixed with fuel and ignited, resulting in a rapid expansion of gases. As the gases expand, they are forced out of the engine at high speeds, creating a reaction force in the opposite direction.
This reaction force is known as thrust, and it is the force that propels the aircraft forward. According to Newton's third law of motion, for every action, there is an equal and opposite reaction. Therefore, as the exhaust gases are expelled from the engine with a certain momentum, the aircraft experiences an equal and opposite momentum in the forward direction.
Key Points:
- Jet engines work on the principle of conservation of linear momentum.
- The total linear momentum of the system (engine, air, and exhaust gases) remains constant unless acted upon by an external force.
- When a jet engine runs, it compresses air, mixes it with fuel, and ignites it, resulting in a rapid expansion of gases.
- The expansion of gases creates a reaction force in the opposite direction, known as thrust.
- According to Newton's third law of motion, the aircraft experiences an equal and opposite momentum in the forward direction due to the expulsion of exhaust gases.
Jet engines work on the principle of conservation of linear momentum. This principle states that the total linear momentum of a system remains constant unless acted upon by an external force. In the case of a jet engine, the system includes the engine itself, the air it takes in, and the exhaust gases it expels.
Explanation:
When a jet engine is running, it takes in a large amount of air and compresses it. This compressed air is mixed with fuel and ignited, resulting in a rapid expansion of gases. As the gases expand, they are forced out of the engine at high speeds, creating a reaction force in the opposite direction.
This reaction force is known as thrust, and it is the force that propels the aircraft forward. According to Newton's third law of motion, for every action, there is an equal and opposite reaction. Therefore, as the exhaust gases are expelled from the engine with a certain momentum, the aircraft experiences an equal and opposite momentum in the forward direction.
Key Points:
- Jet engines work on the principle of conservation of linear momentum.
- The total linear momentum of the system (engine, air, and exhaust gases) remains constant unless acted upon by an external force.
- When a jet engine runs, it compresses air, mixes it with fuel, and ignites it, resulting in a rapid expansion of gases.
- The expansion of gases creates a reaction force in the opposite direction, known as thrust.
- According to Newton's third law of motion, the aircraft experiences an equal and opposite momentum in the forward direction due to the expulsion of exhaust gases.
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A jet engine works on the principle of conservation ofa)linear momentu...
Conservation of Linear Momentum in Jet Engine
Jet engines work on the principle of conservation of linear momentum. When fuel is burned in the combustion chamber, hot gases are expelled at high velocity through the nozzle at the back of the engine. This expulsion of gases in one direction causes a reaction force in the opposite direction, propelling the aircraft forward.
Explanation:
- According to Newton's third law of motion, for every action, there is an equal and opposite reaction. In the case of a jet engine, the action is the expulsion of hot gases at high speed, and the reaction is the forward thrust that propels the aircraft.
- The conservation of linear momentum states that the total momentum of an isolated system remains constant if no external forces act on it. In the case of a jet engine, the system includes the aircraft and the expelled gases.
- As the hot gases are expelled at high velocity, they carry momentum in one direction. By Newton's third law, an equal and opposite momentum is imparted to the aircraft, causing it to move forward.
Significance:
- Understanding the principle of conservation of linear momentum is crucial for designing efficient jet engines that provide the necessary thrust for aircraft propulsion.
- By optimizing the combustion process and nozzle design to maximize the momentum imparted to the expelled gases, engineers can enhance the performance and efficiency of jet engines.
In conclusion, the operation of a jet engine is fundamentally based on the conservation of linear momentum, where the expulsion of hot gases generates thrust by imparting an equal and opposite momentum to the aircraft.
Jet engines work on the principle of conservation of linear momentum. When fuel is burned in the combustion chamber, hot gases are expelled at high velocity through the nozzle at the back of the engine. This expulsion of gases in one direction causes a reaction force in the opposite direction, propelling the aircraft forward.
Explanation:
- According to Newton's third law of motion, for every action, there is an equal and opposite reaction. In the case of a jet engine, the action is the expulsion of hot gases at high speed, and the reaction is the forward thrust that propels the aircraft.
- The conservation of linear momentum states that the total momentum of an isolated system remains constant if no external forces act on it. In the case of a jet engine, the system includes the aircraft and the expelled gases.
- As the hot gases are expelled at high velocity, they carry momentum in one direction. By Newton's third law, an equal and opposite momentum is imparted to the aircraft, causing it to move forward.
Significance:
- Understanding the principle of conservation of linear momentum is crucial for designing efficient jet engines that provide the necessary thrust for aircraft propulsion.
- By optimizing the combustion process and nozzle design to maximize the momentum imparted to the expelled gases, engineers can enhance the performance and efficiency of jet engines.
In conclusion, the operation of a jet engine is fundamentally based on the conservation of linear momentum, where the expulsion of hot gases generates thrust by imparting an equal and opposite momentum to the aircraft.
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A jet engine works on the principle of conservation ofa)linear momentumb)angular momentumc)energyd)massCorrect answer is option 'A'. Can you explain this answer?
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