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A police car moving at 22 m/s, chases a ...

A police car moving at 22 m/s, chases a motorcylist. The police man sounds his horn at 176 Hz, while both of them move towards a stationary siren of frequency 165 Hz. Calculate the speed of the motorcycle, if it is given that he does not observes any beats

A

33 m/s

B

22 m/s

C

Zero

D

11 m/s

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