a man fires a shot and hears an echo from a cliff after 2 sec he walks 85m towards - Science - Sound

Question

a man fires a shot and hears an echo from a cliff after 2 sec he
walks 85m towards the cliff and the echo of the 2nd shot is now
heard after 1 4sec what is the velocity of sound and how far was
the man from the cliff when he heard the eco first?

Srivatsan C · Answer

S = 2D / T = 2 * 85 / ( 2 - 1 4 ) = 283 333
NOW TOTAL DISTANCE = S * T / 2 = 283 333 * 2 / 2 = 283 333
METRES

a man fires a shot and hears an echo from a cliff after 2 sec. he walks 85m towards the cliff and the echo of the 2nd shot is now heard after 1.4sec. what is the velocity of sound and how far was the man from the cliff when he heard the eco first?