Physics, 07.07.2019 01:20 plzhelpmeasap46
You are driving along a highway at 35.0 m/s when you hear the siren of a police car approaching you from behind and you perceive the frequency as 1310 hz. you are relieved that he is in pursuit of a different speed when he continues past you, but now you perceive the frequency as 1240 hz. what is the frequency of the sirenin the police car
Answers: 3
= velocity of the our car = 35.0 m/s 
= velocity of the police car = ?
= velocity of the sound = 343 m/s 
= frequency observed as police car approach = 1310 Hz
= frequency observed as police car go away = 1240 Hz
= actual frequency of police siren
eq-1
eq-2
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