A car is initially at rest at a distance of 330 m from a stationary observer. It begins to move towards the observer with an acceleration of 1.1 m/s2, sounding its horn continuously. 20 s later the driver stops sounding the horn. The observer will hear the sound of horn for a duration of:(Take velocity of sound in air to be 330 m/s)

A car is initially at rest at a distance of 330 m from a stationary ob

1.	A car is initially at rest at a distance of 330 m from a stationary observer. It begins to move towards the observer with an acceleration of 1.1 m/s2, sounding its horn continuously. 20 s later the driver stops sounding the horn. The observer will hear the sound of horn for a duration of:(Take velocity of sound in air to be 330 m/s)
Answer» A car is initially at rest at a distance of $330 m$ from a stationary observer. It begins to move towards the observer with an acceleration of $1.1 {m/s}^{2}$ , sounding its horn continuously. $20 s$ later the driver stops sounding the horn. The observer will hear the sound of horn for a duration of: (Take velocity of sound in air to be $330 m/s)$

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