NOTES ASK YOUR TEACHER PRACTICE ANOTHER A supersonic jet traveling at Mach 2.20 at an altitude of h = 15,000 m is directly over a person at time t = 0 as shown in the figure below. Assume the average speed of sound in air is 335 m/s over the path of the sound. 1=0 h h ! Observer hears Observer the "boom" a b (a) At what time will the person encounter the shock wave due to the sound emitted at t = 0? S (b) Where will the plane be when this shock wave is heard? (Give the plane's horizontal displacement x.) km Need Help? Read It Master It