A man stands in front f a high wall and produces a sound. If he receives the echo of the sound four seconds later, what is his distance from the wall? [The speed of sound in air is 330ms^-1]

Peternovich7

5 years ago

V=2x/t

Making *x* the subject of the formula

X=vt/2

t=4s
V=330m/s
X=330×4/2

X=330×2
X=660m

*B*

sassy.k

1 year ago

formula for calculating distance in sound waves
v=2d\t
v=330m\s
d=?
t=4
330*4/2
d=660m
answer=B