On a certain stretch of track, trains run at 80 mph. How far buck of a atopped train should a'warning torpedo be placed to signal an oncoming train? Assume that the brakes are applied at once and retard the train at the uniform rate of 2 ft per sec'.

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter3: Motion In Two Dimensions
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On a certaín stretch of track, trains run at 60 mph. How far buck of a
stopped train should a 'warning torpedo be placed to signal an oncoming train?
Assume that the brakes are applied at once and retard the train at the uniform
rate of 2 ft per sec.
Transcribed Image Text:On a certaín stretch of track, trains run at 60 mph. How far buck of a stopped train should a 'warning torpedo be placed to signal an oncoming train? Assume that the brakes are applied at once and retard the train at the uniform rate of 2 ft per sec.
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