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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. A 100 kg car is traveling at a speed of 72 km/h when the brakes are suddenly applied, causing the wheels of the car to slide on the track (ulk = 0.20). p= 30 m Die A B P = 45 m Figure 3.
What is the normal force developed near pt. A N
What is the normal force developed between pt. A and B N
What is the normal force developed passed B N
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