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March 24, 2017

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Suppose a car is traveling at +22.3 m/s, and the driver sees a traffic light turn red. After 0.351 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 8.00 m/s2. What is the stopping distance of the car, as measured from the point where the driver first notices the red light?

  • physics - ,

    stopping distance:
    22.3*.351 + braking
    but braking can be found from
    vf^2=vi^2+2ad solve for d. vf=0, a given, vi=22.3

    add the distances.

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