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12–149. The train passes point B with a speed of 20 m/s which is decreasing at a, = - 0.5 m/s². Determine the magnitude of acceleration of the train at this point. 12–150. The train passes point A with a speed of 30 m/s and begins to decrease its speed at a constant rate of a,=- 0.25 m/s².Determine the magnitude of the acceleration of the train when it reaches point B, where sAB = 412 m. y = 200 e 1000 A х -400 m

12–149. The train passes point B with a speed of 20 m/s which is decreasing at a, = - 0.5 m/s². Determine the magnitude of acceleration of the train at this point. 12–150. The train passes point A with a speed of 30 m/s and begins to decrease its speed at a constant rate of a,=- 0.25 m/s².Determine the magnitude of the acceleration of the train when it reaches point B, where sAB = 412 m. y = 200 e 1000 A х -400 m

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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12–149. The train passes point B with a speed of 20 m/s which is decreasing at a, = - 0.5 m/s². Determine the magnitude of acceleration of the train at this point. 12–150. The train passes point A with a speed of 30 m/s and begins to decrease its speed at a constant rate of a,=- 0.25 m/s².Determine the magnitude of the acceleration of the train when it reaches point B, where sAB = 412 m. y = 200 e 1000 A х -400 m
Transcribed Image Text:12–149. The train passes point B with a speed of 20 m/s which is decreasing at a, = - 0.5 m/s². Determine the magnitude of acceleration of the train at this point. 12–150. The train passes point A with a speed of 30 m/s and begins to decrease its speed at a constant rate of a,=- 0.25 m/s².Determine the magnitude of the acceleration of the train when it reaches point B, where sAB = 412 m. y = 200 e 1000 A х -400 m
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