NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. The subway train shown is traveling at a speed of 38 mi/h when the brakes are fully applied on the wheels of car A, causing it to slide on the track, but the brakes are not applied on the wheels of cars B or C. 40 tons B The force FAB is 19.388 The force FBC is 50 tons C Knowing that the coefficient of kinetic friction is 0.35 between the wheels and the track, determine the force in each coupling. 40 tons lb Compression 8.6 lb Compression

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.