A man standing a distance away from a cliff blows a whistle, he hears the echo 5 seconds later. If the speed of sound in air is 440 m/s, calculate how far the man is from the cliff.?
Kendicksonqueen
23 Nov, 2019
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D.Boss
6 years ago
v=velocity
t=time taken
x=distance
Formula;
v=2x/t
v=440m/s
t=5sec
x=?
440=2x/5
2x=440x5
2x=2200
x=2200/2
x=1100 metres
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