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A Question 4 (1 point) Retake question Work and Energy m V1²+ Fdx = m V2² B C The train shown is traveling at a speed of 45 miles/hour when the brakes are applied on the given cars causing it to stop. Given: friction coefficients of us = 0.40 and uk = 0.30, with the weight of each of the car being: Wa = 100 kips, Wb= 70 kips, and Wc = 80 kips, Matching: find the force in the coupling between cars A&B (kips) for the given scenario and determine if the coupling is in compression (C) or tension (T). Train does not slide. Brakes are applied on car B, and not on cars A or C. Train slides. Brakes are applied on cars A&B, and not on car C. Train slides to a stop. Brakes are applied on car A, and not on cars B or C. Train slides. Brakes are applied on car C, and not on cars A or B. 1. Fab = 9.6 C 2. Fab 9.6 T 3. Fab 11.2 C 4. Fab = 11.2 T 5. Fab 16.32 C 6. Fab 16.32 T 7. Fab 18.0 C 8. Fab 18.0 T