November 28, 2015

Homework Help: physics

Posted by victor on Tuesday, July 12, 2011 at 11:01pm.

An unmarked police car traveling a constant 90 km/h is passed by a speeder. Precisely 2.00 s after the speeder passes, the police officer steps on the accelerator.

If the police car accelerates uniformly at 2.00 m/s^2 and overtakes the speeder after accelerating for 7.00 s, what was the speeder's speed in km/h?

I got 28.57 m/s (without converting to km/h yet). And I'm not sure if that's correct.

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