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The Water Cooler
General Discussion
NASA Test Fires New RS-25 Engine
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<blockquote data-quote="Rod Snell" data-source="post: 2782186" data-attributes="member: 796"><p>A rocket engine burns fuel and oxidizer and blasts it to the rear. By Newton's second law and 3rd laws, the action of blowing the exhaust out produces an equal force reaction in the opposite direction: forward. A rocket actually works better in space because there is no friction from the air to resist the rocket motion. </p><p> If you want to experience action-reaction first hand, stand in a 100 pound john boat floating loose in the lake and try to broad jump 5 feet to the dock. The boat, being lighter than you, will go flying backwards in reaction to your action of trying to jump forward.</p></blockquote><p></p>
[QUOTE="Rod Snell, post: 2782186, member: 796"] A rocket engine burns fuel and oxidizer and blasts it to the rear. By Newton's second law and 3rd laws, the action of blowing the exhaust out produces an equal force reaction in the opposite direction: forward. A rocket actually works better in space because there is no friction from the air to resist the rocket motion. If you want to experience action-reaction first hand, stand in a 100 pound john boat floating loose in the lake and try to broad jump 5 feet to the dock. The boat, being lighter than you, will go flying backwards in reaction to your action of trying to jump forward. [/QUOTE]
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NASA Test Fires New RS-25 Engine
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