2. A model rocket has a mass of 300 g and an engine that generates 40 N of thrust. The rocket is launched vertically, so that the trust is directed straight up. It is a windy day, and the wind generates a constant force of 5 N horizontally to the east; you can ignore any other forces from the air such as air drag for this problem. A. Draw a free body for this rocket shortly after launch while the engine is firing. B. What is the net force on the rocket after launch while the engine is firing? Express your answer in component form. C. How much time does it take for the rocket to reach an altitude of 250 m?

2. A model rocket has a mass of 300 g and an engine that generates 40 N of thrust. The rocket is launched vertically, so that the trust is directed straight up. It is a windy day, and the wind generates a constant force of 5 N horizontally to the east; you can ignore any other forces from the air such as air drag for this problem. A. Draw a free body for this rocket shortly after launch while the engine is firing. B. What is the net force on the rocket after launch while the engine is firing? Express your answer in component form. C. How much time does it take for the rocket to reach an altitude of 250 m?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter6: Applications Of Newton’s Laws Of Motion

Section: Chapter Questions

Problem 61PQ: A car with a mass of 1453 kg is rolling along a flat stretch of road and eventually comes to a stop...

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Question

2. A model rocket has a mass of 300 g and an engine that generates 40 N of thrust. The rocket is launched
vertically, so that the trust is directed straight up. It is a windy day, and the wind generates a constant force
of 5 N horizontally to the east; you can ignore any other forces from the air such as air drag for this problem.
A. Draw a free body for this rocket shortly after launch while the engine is firing.
B. What is the net force on the rocket after launch while the engine is firing? Express your answer in
component form.
C. How much time does it take for the rocket to reach an altitude of 250 m?

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D. What is the velocity of the rocket when it reaches 250 m? Express your answer in component form.
E. What is the speed of the rocket when it reaches 250 m?
F. What is the drift (horizontal displacement from the launchpad) of the rocket when it reaches 250 m?

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A car with a mass of 1453 kg is rolling along a flat stretch of road and eventually comes to a stop due to rolling friction. If the car begins with a speed of 10.0 m/s and the car comes to a stop in 6.88 s, what is the coefficient of rolling friction between the tires and the road?
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