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Steep safety ramps are built beside mountain highways to enable vehicles with defective brakes to stop safely. A truck enters a 750-ft ramp at a

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Steep safety ramps are built beside mountain highways to enable vehicles with defective brakes to stop safely. A truck enters a 750-ft ramp at a high speed vo and travels 540 ft in 6 s at constant decelera- tion before its speed is reduced to vo/2. Assuming the same constant deceleration, determine (a) the additional time required for the truck to stop, (b) the additional distance traveled by the truck. VO RAIL LINES CROSS COUNTRY MOVERS O O O

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