Question

a man stands at a distance of 112 m from a vertical wall. on blowing a whistle,he hears the Echo after 0.7 second. calculate the speed of sound in air.

Answer 1

V=2d/t

Where V=speed

D=distance and t=time

So according to the question

V=2*112/0.7=320m/s

Hope it helps Mark it as brain list