Problem: How fast is the osprey approaching
Given: 2200 Hz whistle from osprey’s call
2300 Hz you were able to hear osprey’s call
Solution:
Velocity = 340 x (2300 – 2200) / 2300
Velocity = 340 x 100/2300
Velocity = 340 x 0.043
Velocity = 14.78 m/s