(Answered) If an e-class model rocket motor provides 10 n of thrust

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If an E-class model rocket motor provides 10 N of thrust (force) for three seconds and is installed in a model rocket weighing 100 grams (including the weight of the motor), what is the acceleration of the rocket due to the motor? What is the acceleration (downward) of the rocket due to gravity? Assume the acceleration due to the engine is straight up and the acceleration due to gravity is straight down. What is the net acceleration of the rocket? How fast is the rocket moving when the motor burns out 3 seconds after ignition?

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