Question

An echo was heard after 3s what is the distance of the reflecting surface from the source given that the speed of sound is 342ms

Answer 1

Answer:

513 m

Explanation:

Speed of sound (v) = 342m/s

time (t)= 3 s

Distance = d

v = 2d/t

342 = 2d/3

d = 342*3/2 = 513 m