Question

Powerful sound signal sent from ship is recived again after 2.4 seconds. Calculate depth of the ocean, if the speed is 1500m/s

Answer 1

$1500 \times 2.4 \div 2$

the answer is 1800 m

Answer 2

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➧ T ➾ 2.4 / 2 = 1.2 sec
➧ Speed 0f Sound ➾ 1500 m/s
➧ Depth ➾ ?

❱ Speed = Distance / Time

1500 = Distance / 1.2
   D = 1500 m/s × 1.2 s
     ➾ 1800 m ...✔

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Thanks...✊