Question

John fires a gun towards a hill and hears its echo after 5 seconds. He then moves 320 m towards the hill and fires his gun again. This time he hears the echo after 3 seconds. Calculate i) the velocity of sound and ii) distance between the original position of man & the hill.

• A. i) 340 ms^-1 and ii) 824 m
• B. i) 320 ms^-1 and ii) 800 m
• C. i) 330 ms^-1 and ii) 850 m
• D. i) 340 ms^-1 and ii) 800 m
• E. i) 320 ms^-1 and ii) 824 m

Answer 1

The correct option is B

i) 320 ms^-1 and ii) 800 m