March 28, 2017

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You are driving to the grocery store at 14.8 m/s. You are 140.0 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.440 s and that your car brakes with constant acceleration. You are 133 m from the intersection when you begin to apply the brakes.

a) What acceleration will bring you to rest as you just reach the intersection?
b) How long does it take you to stop?

  • Physics - ,


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