A stone is dropped into a well 44.1m deep. The sound of... – Physics

Physicshard · Past Paper

A stone is dropped into a well 44.1m deep. The sound of splash is heard 3.13s later. The velocity of sound is:

A330 m/s

B340 m/s

C350 m/s

D320 m/s

✓ Correct Answer: B — 340 m/s

Time to fall = sqrt(2h/g) = 3s. Time for sound = 3.13 - 3 = 0.13s. Speed of sound = 44.1 / 0.13 approx 340 m/s.

Share this question