A 128 kg astronaut and his equipment are initially at rest. To move forward with a velocity of 2.34 m/s, the astronaut fires a 532 N rocket in the backward direction. How long does the astronaut need to fire the rocket?

A 128 kg astronaut and his equipment are initially at rest. To move forward with a velocity of 2.34 m/s, the astronaut fires a 532 N rocket in the backward direction. How long does the astronaut need to fire the rocket?

Classical Dynamics of Particles and Systems

5th Edition

ISBN:9780534408961

Author:Stephen T. Thornton, Jerry B. Marion

Publisher:Stephen T. Thornton, Jerry B. Marion

Chapter9: Dynamics Of A System Of Particles

Section: Chapter Questions

Problem 9.60P

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Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”

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A 128 kg astronaut and his equipment are initially at rest. To move forward with a velocity of 2.34 m/s, the astronaut fires a 532 N rocket in the backward direction. How long does the astronaut need to fire the rocket?

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