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Physics / Sears and Zemansky's University Physics with Modern Physics 13 / Chapter 2 / Problem 2.70

Sears and Zemansky's University Physics with Modern Physics | 13th Edition | ISBN: 9780321696861 | Authors: Hugh D. Young; Roger A. Freedman; A. Lewis Ford

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Collision. The engineer of a passenger train traveling at

Chapter 2, Problem 2.70

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QUESTION:

Collision. The engineer of a passenger train traveling at 25.0 m>s sights a freight train whose caboose is 200 m ahead on the same track (Fig. P2.70). The freight train is traveling at in the same direction as the passenger train. The engineer of the passenger train immediately applies the brakes, causing a constant acceleration of in a direction opposite to the trains velocity, while the freight train continues with constant speed. Take at the location of the front of the passenger train when the engineer applies the brakes. (a) Will the cows nearby witness a collision? (b) If so, where will it take place? (c) On a single graph, sketch the positions of the front of the passenger train and the back of the freight train.

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QUESTION:

Collision. The engineer of a passenger train traveling at 25.0 m>s sights a freight train whose caboose is 200 m ahead on the same track (Fig. P2.70). The freight train is traveling at in the same direction as the passenger train. The engineer of the passenger train immediately applies the brakes, causing a constant acceleration of in a direction opposite to the trains velocity, while the freight train continues with constant speed. Take at the location of the front of the passenger train when the engineer applies the brakes. (a) Will the cows nearby witness a collision? (b) If so, where will it take place? (c) On a single graph, sketch the positions of the front of the passenger train and the back of the freight train.

ANSWER:

Step 1 of 7

Given values are

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