a rifle shot is fired in a valley between 2 cliffz.The echo from one cliff is heard 3 sec later.If the velocity of sound in air is 330 m/sec,then find width of the valley.
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2d=3*330
d=990/2
d=495m
d=990/2
d=495m
Tigerthegreat:
how?
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Answered by
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Hey.....Here is your ans u r looking for...
echo listen after 3s...
time taken by sound to go to the cliffz =3/2 =1.5s
speed of sound = 330m/s
s= d/t
d= s×t
d=330×1.5
d=495m
Hence distance between two cliffz is 495m
echo listen after 3s...
time taken by sound to go to the cliffz =3/2 =1.5s
speed of sound = 330m/s
s= d/t
d= s×t
d=330×1.5
d=495m
Hence distance between two cliffz is 495m
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