You are on a train that is traveling at 3.0 m/s along a level straight track. Very near andparallel to the track is a wall that slopes upward at a 12° angle with the horizontal. Asyou face the window (0.777 m high, 2.26 m wide) in your compartment, the train ismoving to the left, as the drawing indicates. The top edge of the wall first appears atwindow corner A and eventually disappears at window corner B. How much time, inseconds, passes between appearance and disappearance of the upper edge of thewall?ABA3.0 m/s12⁰B

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