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Posted by on Wednesday, January 22, 2014 at 8:30pm.

A car traveling at 20m/s when the driver sees a child standing in the road. He takes 0.80s to react, then steps on the brakes and slows at 7.0m/s^2. How far does the car go before it stops?

  • Physics - , Friday, January 24, 2014 at 8:33pm

    d = Vo*t + (V^2-Vo^2)/2a
    d = 20*0.8 + (0-20^2)/-14 = 44.6 m.

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