Neco 2023 Physics Question 5
Practice objective / multiple choice question 5 from the 2023 Neco Physics examination.
A police car equipped with a siren of frequency \(f = 800\ \text{Hz}\) approaches a stationary observer. When the car is moving towards the observer, the observed frequency is \(933\ \text{Hz}\). After the car passes the observer and moves away, the observed frequency drops to \(700\ \text{Hz}\). Assuming the speed of sound in air is \(v = 340\ \text{m\,s}^{-1}\) and that only the source is moving, calculate the speed of the police car.
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About This Question
This is Neco 2023 Physics Question 5. It is one of the objective questions from the 2023 Neco Physics examination.
Difficulty level: Medium .
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