A red train traveling at 72km/h and a green train traveling at 144km/h arc headed toward each
Question:
A red train traveling at 72km/h and a green train traveling at 144km/h arc headed toward each other along a straight, level track. When they are 950 m apart, each engineer sees the other's train and applies the brakes. The brakes slow each train at the rate of 1.0 m/s2. Is there a collision? If so, answer yes and give the speed of the red train and the speed of the green train at impact, respectively. If not, answer no and give the separation between the trains when they stop.
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Step by Step Answer:
We take the moment of applying brakes to be t 0 The deceleration is constant so that Table 21 can be ...View the full answer
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Related Book For 
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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