Physics- Velocity

Question

1. While at a track meet, you notice a time delay between when you see the starter’s pistol fire and when you hear it. If that delay is 0.4 seconds, how far away are you? Draw a picture of the situation.

Answer 1

This question is about the speed of sound, which is approximately

v = 330 m/s

Then the distance s the sound travels in time t is

s = vt

Substituting actual numbers

s = 330×0.4 = 132 m