Sailors on a ship hear the echo of their foghorn from a cliff, 3 seconds after it is sounded. If the sound travels at 330 m/S, work out the distance of the ship from the cliff.
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Let velocity be v
Distance be d
Time taken be t
t = 3s
d= ?
V=330m/s
d=Vt/2
d=330×3/2
d=990/2
d=495metres
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