1. The problem statement, all variables and given/known data a cyclist and a car are approaching each other at the same speed. the car makes a 500 Hz sound at 343 m/s. the cyclist hears the sound as 535 Hz. How fast are they moving? 2. Relevant equations f2 = f1(v/v[tex]\pm[/tex]vs) 3. The attempt at a solution 535 hz = 500 hz(343 m/s[tex]\div[/tex]343 m/s-vs) vs = 22.4 m/s but the answer should be 11 m/s HELP ??