A railroad freight car weighing 280kN and traveling at 1.52 m/s overtakes one weighing 210kN and traveling

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A railroad freight car weighing 280kN and traveling at 1.52 m/s overtakes one weighing 210kN and traveling at 0.914 m/s in the same direction. If the cars couple together, find

(a) The speed of the cars after the collision and

(b) The loss of kinetic energy during the collision. If instead, as is very unlikely, the collision is elastic, find the after-collision speed of

(d) The heavier car.

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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Question Posted: Jan 12, 2011 03:01 AM

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A railroad freight car weighing 280kN and traveling at 1.52 m/s overtakes one weighing 210kN and traveling

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In the momentum relationships we could as easily work with weights ...View the full answer

Fundamentals of Physics

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