Question

Two robbers are speeding away from the police after stealing from a bank.  The frequency of a police siren is 635 Hz, and the velocity of sound in air is 330m/s   

A.) If a pedestrian is walking toward the police car at 1.5 m/s what is the frequency the pedestrian hears the siren at?   

B.) If a pedestrian is walking toward the police car at 1.5 m/s what is the frequency the pedestrian hears the siren at?   

Answer 1