A rescue plane flies horizontally at a constant speed searching for a disabled boat. When the plane is directly above the boat, the boat's crew blows a loud horn. By the time the plane's sound detector receives the horn's sound, the plane has traveled a distance equal to half its altitude above the ocean. Assuming it takes the sound 1.86 s to reach the plane, and taking the speed of sound to be 343 m/s, determine the following. (a) the speed of the plane m/s (b) the altitude of the plane m Need Help? Read It Watch It