The lead singer in a 70's disco band was famous for his falsetto, medallion and teeth. The flamboyant singer arranges to execute a freefall parachute...

The lead singer in a 70's disco band was famous for his falsetto, medallion and teeth. The flamboyant singer arranges to execute a freefall parachute drop into the arena while singing atf0= 615-Hz. Unfortunately his parachute fails to open. Just before impact the audience hears a frequency of 1.22 ×f0. What was the singer's terminal velocity, if the speed of sound is 330-m/s?