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An automobile traveling at 20 m/s is approaching a traffic signal. when the driver is 150 m from the intersection, the light changes from green to yellow. Since the light will remain yellow for 5 s, the driver accelerates just enough to cross the intersection while the light is still yellow.

A) Calculate the minimum acceleration, assumed to be constant.

B) What is the speed of the automobile as its crosses the intersection.

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  • Category:- Physics
  • Reference No.:- M91111035

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