A person standing on a level plain hears the sound of a plane andlooks in the direction of the sound, but the plane is not there (famil-iar?. When the sound was heard, it was coming from a point at...

A person standing on a level plain hears the sound of a plane and

looks in the direction of the sound, but the plane is not there (famil-

iar?. When the sound was heard, it was coming from a point at an

angle of elevation of 25°, and the plane was travelling at 720 km/h

(201 m/s) at a constant altitude of 850 m along a straight line. If the

plane later passes directly over the person, at what angle of elevation

should the person have looked directly to see the plane when the

sound was heard? (The speed of sound is 340 m/s.) See Fig. 4.76.

Oct 05, 2022

Get Answer To This Question