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Statement of a problem № 2521

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A 1200-kg car is coasting down a 30° hill as shown in Fig. 6-4. At a time when the car’s speed is 12 m/s, the driver applies the brakes. What constant force F (parallel to the road) must result if the car is to stop after traveling 100 m?

Solution:
A 1200-kg car is coasting down a 30° hill as shown in Fig. 6-4. At a time when

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