Question

A man fires a gun & hears an echo from a hill after 5s. He then moves 200m towards the hill & then fires again. This time he hears an echo after 3.78s. Calculate i) velocity of sound in air ii) distance between the original position of man & the hill.

• A. i) 330 ms^-1 and ii) 819 m
• B. i) 340 ms^-1 and ii) 819.67 m
• C. i) 327.87 ms^-1 and ii) 819 m
• D. i) 327.87 ms^-1 and ii) 819.67 m
• E. i) 340 ms^-1 and ii) 800 m

Answer 1

The correct option is D

i) 327.87 ms^-1 and ii) 819.67 m