A lidar (laser radar) gun is an alternative to the standard radar gun that uses theDoppler effect to catch speeders. A lidar gun uses an infrared laser and emits aprecisely timed series of pulses of infrared electromagnetic waves. The time for eachpulse to travel to the speeding vehicle and return to the gun is measured. In onesituation a lidar gun is a stationary police car observes a difference of 1.16 x 10 s inround-trip travel times for two pulses that are emitted 0.550 s apart. Assuming thatthe speeding vehicle is approaching the police car essentially head-on, determine thespeed of the vehicle.

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