Question

A boy standing at some distance from a cliff clapshis hands and had an echo 0.8 later what is the distance of the Cliff from the boy is speed is 340 M per second

Answer 1

distance=(340×0.8)/2=136 m

Answer 2

Hello,
the distance is valid:
d=(v×t):2=(340×0.8)/2=136 m

bye :-)