Physics-
General
Easy
Question
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
- 33 m/s
- 22 m/s
- Zero
- 11 m/s
The correct answer is: 22 m/s
= Frequency of the police car horn observer heard by motorcyclist
= Frequency of the siren heard by motorcyclist.
v2 = Speed of motor cyclist
= 
.
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