Question

A submarine emits a sonar pulse which returns from an underwater cliff in 4 seconds .
If the speed of sound in salt water is 1531 metre / second , how far is the cliff .

Answer 1

TOTAL TIME FOR THE SONAR PULSE TO TRAVEL AND REACH BACK AGAIN=4S

TIME TAKEN TO REACH THE GROUND=2S

VELOCITY=1531m/s

DISTANCE = 1531×2

DISTANCE=3062m

Answer 2

Answer: I think the answer is 1535m\s

Explanation: