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. In a Rocket Launch, the Action Force Is the Rocket Expelling Gas Downward. What Is Thing Against the Old. the Reaction Force? A.

Question

. In a rocket launch, the action force is the rocket expelling gas downward. What is thing against the old. the reaction force? A. Gravity pulling the rocket down. B. The rocket moving upward. C. Air resistance acting on the rocket. D. The ground supporting the rocket.

Solution

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Answer

The answer is B. The rocket moving upward.**Explanation:**Newton's Third Law of Motion states that for every action, there is an equal and opposite reaction. The action is the rocket pushing the gas downwards. The equal and opposite reaction is the gas pushing the rocket upwards. This upward force is what propels the rocket into flight.The other options are incorrect:* **A. Gravity pulling the rocket down:** Gravity is a force acting on the rocket, but it's not the *reaction* to the expulsion of gas.* **C. Air resistance acting on the rocket:** Air resistance opposes the rocket's motion, but it's not the direct reaction to the expulsion of gas.* **D. The ground supporting the rocket:** The ground supports the rocket before launch, but once launched, the ground is no longer involved in the action-reaction pair described.