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A train, traveling at a constant speed of 22.0 m/s, comes to an incline with a constant slope. While goingup the incline, the train slows down with a constant acceleration of magnitude 1.40 m/s?. Which of the following is a graph of vy Vs. t where the x-axis points up the incline?

Fig: 1

Fig: 2

Fig: 3

Fig: 4