A police car moving at 22 m s 1 chases a motor cycle The man in the car sounds his horn at 170 Hz while both of them move

Question

A police car moving at 22 m s 1 chases a motor cycle The man in the car sounds his horn at 170 Hz while both of them move towards a stationary siren of frequency 165 Hz Calculate the speed of motor cycle if the motor cyclist does not listen any beat 22 m s

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