If the police car accelerates uniformly at 3.00m/s^2 and, Ask an Expert

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An unmarked police car traveling a constant 90 km/h is passed by a speeder. Precisely 1.00s after the speeder passes, the police officer steps on the accelerator.

If the police car accelerates uniformly at 3.00m/s^2 and overtakes the speeder after accelerating for 9.00 s, what was the speeder's speed?

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