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]

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

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 23P: The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows...

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