# A bullet passes past a person at a speed of

Question:

A bullet passes past a person at a speed of $220 \mathrm{~m} \mathrm{~s}^{-1}$. Find the fractional change in the frequency of the whistling sound heard by the person as the bullet crosses the person. Speed of sound in air $=330 \mathrm{~m} \mathrm{~s}^{-1}$.

Solution: