In the problem below, if v = 60 km/h and m = -0.24, please submit your answer in 2 decimal places.
12.47: The roller-coaster track shown is contained in a vertical plane. The portion of the track between A and B is straight and horizontal, while the portions to the left of A and to the right of B have radii of curvature as indicated. The car is traveling at a speed of v when the brakes are suddenly applied, causing the wheels of the car to slide on the track (uk = m). Determine the initial deceleration of the car if the brakes are applied as the car has almost reached A.
30 m
45 m
tv