Question : A jet engine works on the principle of conservation of________.
Option 1: heat
Option 2: mass
Option 3: linear momentum
Option 4: angular momentum
Correct Answer: linear momentum
Solution : The correct answer is linear momentum .
The jet engine works on the principle of conservation of linear momentum. It produces a large amount of gas, while the combustion of fuel, which escapes from the back of the jet, moves it forward at high speed.
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