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Three identical train cars, coupled together, are rolling

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics | 3rd Edition | ISBN: 9780321740908 | Authors: Randall D. Knight

Problem 34P Chapter 9

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics | 3rd Edition

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics | 3rd Edition | ISBN: 9780321740908 | Authors: Randall D. Knight

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics | 3rd Edition

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Problem 34P

Three identical train cars, coupled together, are rolling east at 2.0 m/s. A fourth car traveling east at 4.0 m/s catches up with the three and couples to make a four-car train. A moment later, the train cars hit a fifth car that was at rest on the tracks, and it couples to make a five-car train. What is the speed of the five-car train?

Step-by-Step Solution:

Solution 34 P

  Step 1 of 3</p>

We are required to calculate the speed of the five-car train

Step 2 of 3</p>

Case 1

Consider the mass of each car ,  kg

Three car’s moving together with velocity  m/s and  kg

The fourth car velocity is   m/s

According to conservation of linear momentum for the system of three cars and fourth car

               

                   

                     m/s

Step 3 of 3

Chapter 9, Problem 34P is Solved
Textbook: Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Edition: 3rd
Author: Randall D. Knight
ISBN: 9780321740908

The answer to “Three identical train cars, coupled together, are rolling east at 2.0 m/s. A fourth car traveling east at 4.0 m/s catches up with the three and couples to make a four-car train. A moment later, the train cars hit a fifth car that was at rest on the tracks, and it couples to make a five-car train. What is the speed of the five-car train?” is broken down into a number of easy to follow steps, and 65 words. The full step-by-step solution to problem: 34P from chapter: 9 was answered by Sieva Kozinsky, our top Physics solution expert on 08/30/17, 04:34AM. This textbook survival guide was created for the textbook: Physics for Scientists and Engineers: A Strategic Approach with Modern Physics, edition: 3rd. Physics for Scientists and Engineers: A Strategic Approach with Modern Physics was written by Sieva Kozinsky and is associated to the ISBN: 9780321740908. Since the solution to 34P from 9 chapter was answered, more than 229 students have viewed the full step-by-step answer. This full solution covers the following key subjects: Car, train, cars, east, Couples. This expansive textbook survival guide covers 17 chapters, and 1439 solutions.

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