A car approaching a crossing at a speed of 30 m s sounds a

Last updated: 6/13/2023

A car approaching a crossing at a speed of 30 m s sounds a hom of frequency 500 Hz when 40 m from the crossing Speed of sound in air is 330 m s What frequency is heard by an observer 30 m from crossing on other straight road which crosses car road at right angles 1 539 Hz 3 530 Hz 40m 30m 2 512 Hz 4 550 Hz