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Homework Help: Kinematics decelerating

  1. Oct 24, 2011 #1
    A car is initially traveling at 50.0 km/h. The brakes are applied and the car stops over a distance of
    35 m. What was magnitude of the car's acceleration while it was braking?

    for this problem i know you have to use V= (Vf^2 - Vo^2)/2a

    how do you figure out the initial velocity after the breaks are applied?
  2. jcsd
  3. Oct 24, 2011 #2


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    Gold Member

    You mean to say: x - x0 = (Vf2 - V02)/2a

    It is given: 50km/h
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