**13. You are on a train that is traveling at 3.0 m/s along a level straight track. Very near and parallel to the track is a wall that slopes upward at a 12° angle with the horizontal. As you face the window (0.90 m high, 2.0 m wide) in your compartment, the train is moving to the left, as the drawing indicates. The top edge of the wall first appears at window cor- ner A and eventually disappears at window corner B. How much time passes between appearance and disappearance of the upper edge of the wall? 3.0 m/s B B A A 12° Problem 13

**13. You are on a train that is traveling at 3.0 m/s along a level straight track. Very near and parallel to the track is a wall that slopes upward at a 12° angle with the horizontal. As you face the window (0.90 m high, 2.0 m wide) in your compartment, the train is moving to the left, as the drawing indicates. The top edge of the wall first appears at window cor- ner A and eventually disappears at window corner B. How much time passes between appearance and disappearance of the upper edge of the wall? 3.0 m/s B B A A 12° Problem 13

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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Question

**13. You are on a train that is traveling at 3.0 m/s along a level straight
track. Very near and parallel to the track is a wall that slopes upward at
a 12° angle with the horizontal. As you face the window (0.90 m high,
2.0 m wide) in your compartment, the train is moving to the left, as the
drawing indicates. The top edge of the wall first appears at window cor-
ner A and eventually disappears at window corner B. How much time
passes between appearance and disappearance of the upper edge of the
wall?
3.0 m/s
B
B
A
A
12°
Problem 13

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