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t = 2 s
v = 1400 m/s
ditanya : s ?
maka :
s = 1/2 x v x t
= 1/2 x 1.400 x 2
= 1.400 m (C)
Selang waktu (t) sampai dasar laut= 2 sekon
Selang waktu (t) = ½ (2 sekon) = 1 sekon
maka : Cepat rambat bunyi di udara
Kedalaman laut atau jarak kapal ke dasar laut
:
s = v t
s = (1400 m/s)(1 s)
s = 1400 meter