Answered: m. Find (i) the original speed of the…

m. Find (i) the original speed of the train, (ii) the time before it comes to rest, (iii) the distance it will travel in that interval, assuming the brake to cause a constant retardation.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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An engine driver suddenly puts on his brake and shuts off steam when he is running at full speed; in the first second afterwards the train travels 28 m and in the next second 26 m. Find (i) the original speed of the train, (ii) the time before it comes to rest, (iii) the distance it will travel in that interval, assuming the brake to cause a constant retardation. Find also the time the train will take, if it be 30 m long, to pass a spectator standing at a point 150 m ahead of the train at the instant when the brake was applied.
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