4.5 - Decelerating Spacecraft
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Practice Questions
Test your understanding with targeted questions
What does the mass conservation equation state about inflow and outflow?
💡 Hint: Think about conservation principles in a closed system.
Define momentum flux in simple terms.
💡 Hint: Consider the flow of water in terms of amount and speed.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the mass conservation equation state?
💡 Hint: Think about how fluids behave in a closed system.
True or False: Thrust is the force that helps a spacecraft move forward.
💡 Hint: Consider how rockets operate.
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Challenge Problems
Push your limits with advanced challenges
A spacecraft with a mass of 15000 kg descends at 600 m/s. If it expels 90 kg/s of fuel at 2500 m/s for 10 seconds, calculate the change in velocity.
💡 Hint: Consider thrust's effect versus gravitational pull while calculating.
Analyze the implications if the thrust only begins after the spacecraft has fallen for 15 seconds. What changes upon activation?
💡 Hint: Reflect on how time impacts momentum and force balance.
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