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a bus is travelling on a horizontal road at a velocity of 126 km/h when the bus driver notices an object in the road. the brakes
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a bus is travelling on a horizontal road at a velocity of 126 km/h when the bus driver notices an object in the road. the brakes are applied and the bus is brought to rest over a distance of 150m. the frictional resistance is 2500n and the bus has a mass
