Question

a jet engine works on the principal of Newtown which law of Newton's
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Answer 1

Explanation:

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The jet works on the principle of action-reaction. ... Therefore, Newton's third law of motion is responsible for the motion of the jet.

Answer 2

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The jet works on the principle of action-reaction. Therefore, Newton's third law of motion is responsible for the motion of the jet. The jet – gas system is considered for the action - reaction.