A herdsman yelling out to fellow herdsman heard his voice reflected by cliff 4s later. What is the velocity of sound in air if the cliff is 680m away?

Giddywise

6 years ago

yes my school using this formular v = 2l/t, therefore v=2 x 666/4 = 340ms-1 answ c

ManiaWisdom

4 years ago

velocity= distance/time
echo sound time= half total in time
solution
½×4=2
therefore velocity= 680 divided by 2
equal to
=340ms-¹ meter per second.

SmithaBen

1 year ago

it can also be
V=d/t
680/4 = 170
170×2 = 340ms-1

Glo16

4 years ago

velocity=distance/time
V=680/4=170
sound due to echo
V=2x/t
170=2x/4
2x=680
x=340

Vickitonto

2 years ago

An alternative formula is V = (2x)/t
where x is the horizontal distance in metres
v is the velocity or speed in m/s
t is the time taken in secs

racheljoy

1 year ago

this almost confused me 😔
but I understand it now 😺

Doctordanny

4 years ago

Distance= VT/2

HamzatHassan

1 year ago

v=2s/t
=2*680/4
=340

Finesse11

1 year ago

so in one word the answer is 340

harrisonnweke

1 year ago

velocity is V=s/t
why using third equation of motion

Greatness0000

4 months ago

1/2 ×4 is not 25

Shollay122

11 years ago

Lolz Velocity= distance/time

and echo=half of total time

:. 1/2x4=2

==>>V= 680/2 =340ms^-1