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Question: A person driving her car at 47.0 km/hr approaches an intersection just as the traffic light turns yellow. She knows that the yellow light lasts only 2.00 s before turning to red, and she is a distance D = 26.0 m away from the near side of the intersection. If she decides to stop, how far from the intersection will she come to a stop? The intersection is W =10.0 m wide. Her car's maximum deceleration is -5.80 m/s2. Ignore the length of her car and her reaction time. Assume the beginning of the intersection the origin of your x-coordinate and take distances beyond the intersection to be positive and distances before the intersection to be negative.

Part A: The car can accelerate from 47.0 km/hr to 75.0 km/hr in 6.40 s. How far from the intersection will she be when the light turns red?

Part B: The car can accelerate from 51.0 km/hr to 75.0 km/hr in 6.50 s. How far from the intersection will she be when the light turns red?

I want you to clarify the physics in this above question.

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