A railroad car of mass M moving at a speed v_1 collides and couples with two coupled railroad cars, each of the same mass M and moving in the same direction at a speed v_2.(a) What is the speed v_f of the three coupled cars after the collision in terms of v_1 and v_2?(b) How much kinetic energy is lost in the collision? Answer in terms of M, v_1, andv_2 .

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Description: A railroad car of mass M moving at a speed v_1 collides and couples with two coupled railroad cars, each of the same mass M and moving in the same direction at a speed v_2.(a) What is the speed v_f of the three coupled cars after the collision in ter

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Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter8: Momentum And Collisions

Section: Chapter Questions

Problem 31P

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A railroad car of mass M moving at a speed v_1 collides and couples with two coupled railroad cars, each of the same mass M and moving in the same direction at a speed v_2.

(a) What is the speed v_f of the three coupled cars after the collision in terms of v_1 and v_2?

(b) How much kinetic energy is lost in the collision? Answer in terms of M, v_1, andv_2 .

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