A speeding train (with mass 444,000 kg) is moving east with speed 88.9 m/s. Superman (with mass 90.7 kg) needs to stop the train, (so it doesn't fly off the edge of a cliff!) so he flies directly west toward the train. When he reaches the train, he holds it tightly, and they come to a complete stop in 3.25 s. Coordinate system: • east is in the positive x direction • west is in the negative x direction Question 1 What kind of collision is this? elastic inelastic Question 2 What is the sign of the initial momentum of the train? O positive negative Question 3 What is the sign of the initial momentum of Superman? O positive O negative

A speeding train (with mass 444,000 kg) is moving east with speed 88.9 m/s. Superman (with mass 90.7 kg) needs to stop the train, (so it doesn't fly off the edge of a cliff!) so he flies directly west toward the train. When he reaches the train, he holds it tightly, and they come to a complete stop in 3.25 s. Coordinate system: • east is in the positive x direction • west is in the negative x direction Question 1 What kind of collision is this? elastic inelastic Question 2 What is the sign of the initial momentum of the train? O positive negative Question 3 What is the sign of the initial momentum of Superman? O positive O negative

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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