Question

An echo is heard in 3 s. What is
the distance of the reflecting
surface from the source, gluen
that the speed of sound is
342 ms?​

Answer 1

Answer:

2d = v × t

2d. = 342× 3

d = 1026÷2

therefore, d= 513 m

Answer 2

Answer:

513m

Explanation:

v=342m/s

t=3s

d=?

using formula

2d=vt

2d= 342*3

2d=1026m

d=1026/2

d=513m