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(Solved): A car traveling 56.0 km/h is 21.0 m from a barrier when the driver slams on the brakes. The car hits ...



A car traveling 56.0 km/h is 21.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.22 s later. (a) What is the magnitude of the car's constant acceleration before impact?



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