A red train travelling at 72 km/h and a green train travelling at 144 km/h are 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 s 2. Is there a collision? If so, answer yes [in the first box] and give the speed of the red train and the speed of the green train at impact, respectively. [in the second and third box - give answers as integers, and in units: m/s but without the units] If not, answer no [in the first box] and give the distance travelled by the red train and the distance travelled by the green train when they stop, respectively. [in the second and third box - give answers as integers in units m but without the unit]

A red train travelling at 72 km/h and a green train travelling at 144 km/h are 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 s 2. Is there a collision? If so, answer yes [in the first box] and give the speed of the red train and the speed of the green train at impact, respectively. [in the second and third box - give answers as integers, and in units: m/s but without the units] If not, answer no [in the first box] and give the distance travelled by the red train and the distance travelled by the green train when they stop, respectively. [in the second and third box - give answers as integers in units m but without the unit]

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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A red train traveling at 72 km/h and a green train traveling at 144 km/h are headed toward each other on a straight, level track. When they are 950 m apart, each engineer sees the other's train and applies the breaks. The brakes slow each train at the rate of 1.0 m/s^2. Is there a collision? If so, what is the speed of the red train and the speed of the green train? If not, what is the separation between the trains when they stop?
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A red train traveling at 72 km/h and a green train traveling at 144 km/h are 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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