Two trains, one travelling at 20.8m/s and the other at 76.2 m/s, are headed toward one another along a straight level track. When they are 839 m apart, each engineer sees the other's train and applies the brakes. Assuming both trains have equal magnitude accelerations after the brakes are applied, determine the minimum magnitude of this acceleration () in order to avoid a collision.

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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Question 13
Two trains, one travelling at 20.8m/s and the other at 76.2 m/s, are
headed toward one another along a straight level track. When they
are 839 m apart, each engineer sees the other's train and applies the
brakes. Assuming both trains have equal magnitude accelerations
after the brakes are applied, determine the
minimum magnitude of this acceleration () in order to avoid a
collision.
Answer:
Transcribed Image Text:Question 13 Two trains, one travelling at 20.8m/s and the other at 76.2 m/s, are headed toward one another along a straight level track. When they are 839 m apart, each engineer sees the other's train and applies the brakes. Assuming both trains have equal magnitude accelerations after the brakes are applied, determine the minimum magnitude of this acceleration () in order to avoid a collision. Answer:
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