A motorcycle policeman hidden at an intersection observes a car

A motorcycle policeman hidden at an intersection observes a car

A motorcycle policeman hidden at an intersection observes a car that ignores a stop sign, crosses the intersection, and continues on at constant speed. T he policeman starts off in pursuit 2.0 s after the car has passed the stop sign, accelerates at 6.2 m/s2 until his speed is 110 km/h , and then continue s at this speed until he catches the car. At that instant, the car is 1.4 km from the intersection. How fast was the car traveling?

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