A person driving her car at 45 km/h approaches and intersection just as the traffic light turns

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A person driving her car at 45 km/h approaches and intersection just as the traffic light turns yellow. She knows that the yellow light lasts only 2.0s before turning red, and she is 28m away from the near side of the intersection (Fig 2-31) should she try to stop, or should she speed up to cross the intersection before the light turns red? The intersection is 15m wide. Her car€™s maximum deceleration is €“ 5.8m/s2, whereas it can accelerate from 45 km/h to 65 km/h in 6.0s, Ignore the length of her car and her reaction time.


-15m- -28 m-
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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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