8. A machine gun is attached to a railroad flatcar, at rest, that can roll with negligible friction. If the railroad car (including the machine gun) has a mass of 6.25 x 104 kg, how many bullets of mass 25 g would have to be fired at 250 m/s off the back to give the railroad car a forward velocity of 0.5 m/s? A. 1000 bullets B. 2000 bullets C. 3000 bullets D. 4000 bullets E. 5000 bullets

8. A machine gun is attached to a railroad flatcar, at rest, that can roll with negligible friction. If the railroad car (including the machine gun) has a mass of 6.25 x 104 kg, how many bullets of mass 25 g would have to be fired at 250 m/s off the back to give the railroad car a forward velocity of 0.5 m/s? A. 1000 bullets B. 2000 bullets C. 3000 bullets D. 4000 bullets E. 5000 bullets

Name: 8.A machine gun is attached to a railroad flatcar, at rest, that can
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Description: 8.A machine gun is attached to a railroad flatcar, at rest, that can roll with negligiblefriction. If the railroad car (including the machine gun) has a mass of 6.25 x 104 kg,how many bullets of mass 25 g would have to be fired at 250 m/s off the ba

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter6: Momentum, Impulse, And Collisions

Section: Chapter Questions

Problem 31P: a man of mass m1 = 70.0 kg is skating at v1 = 8.00 m/s behind his wife of mass m2 = 50.0 kg, who is...

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