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Parabolas when having fun!. Parabolas when eating!. Parabolas when driving a car. Breaking distance for the average car: BD = 0.0515r 2 where r is the speed in miles per hour, and BD is measured in feet. Total Stopping distance :
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Parabolas when driving a car Breaking distance for the average car: BD = 0.0515r2 where r is the speed in miles per hour, and BD is measured in feet. TotalStopping distance: TSD = 0.0515r2 + 1.1r ; where r is the speed in miles per hour, and TSD is in feet.