How much time in seconds elapses until the police car

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A vehicle is speeding at 115 km/h on a straight highway when a police car moving at 145 km/h enters the highway from an onramp and starts chasing it. The speeder is 175 m ahead of the police car when the chase starts, and both cars maintain their speeds. How much time, in seconds, elapses until the police car overtakes the speeder?

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