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

Question

Infinity Learn · Accepted Answer

$$n1$$ $$=$$ Frequency of the police car horn observer heard by motorcyclist $$n2$$ $$=$$ Frequency of the siren heard by motorcyclist.$$v2$$ $$=$$ Speed of motor $$cyclistn1=330$$−$$v330$$−$$22$$×$$176$$  ;    $$n2=330+v330$$×$$165$$∵$$n1$$−$$n2=0$$⇒$$v=22$$ $$m/s$$.

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

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