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August 2, 2015

Homework Help: Physics

Posted by Angie on Monday, August 25, 2008 at 10:41pm.

You are driving to the grocery store at 20 m/s . You are 110m from an intersection when the traffic light turns red. Assume that your reaction time is 0.50s and that your car brakes with constant acceleration.
_ How far are you from the intersection when you begin to apply the brakes?
_ What acceleration will bring you to rest right at the intersection
_ How long does it take you to stop after the light changes.?

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