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March 29, 2017

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You are driving to the grocery store at 12.2 m/s. You are 193.0 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.790 s and that your car brakes with constant acceleration. How far are you from the intersection when you begin to apply the brakes?

  • physics - ,

    distancetraveled=velocity*reactiontime.

    subtract that from the initial distance to the light.

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