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A 100-kg machine gun fires a 0.5-kg bullet with a velocity of 400 m/s relative to the ground. What is the recoil speed of the machine gun? 2.0 m/s 20 m/s 1.0 m/s 4.0 m/s 6.0 m/s

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter9: Momentum And Its Conservation

Section: Chapter Questions

Problem 72A

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Please explain

A 100-kg machine gun fıres a 0.5-kg bullet with a velocity of 400 m/s
relative to the ground. What is the recoil speed of the machine gun?
2.0 m/s
20 m/s
1.0 m/s
4.0 m/s
6.0 m/s

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