Physics · Challenge

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Sonar depth soundingRunning
Wave console. Channel depth at 73.6 m. Round trip path 147.2 m, Sound path 72 m. Currently round trip path is over by 75.2 m.TUNINGSOURCERESONANCE73.6 M
t = 0.0s

Round trip path

147.2m

Sound path

72m

73.6 m

Wave console. Channel depth at 73.6 m. Round trip path 147.2 m, Sound path 72 m. Currently round trip path is over by 75.2 m.

What has to balanced=vt2d = \frac{vt}{2}

What is happening

You take control of a fishing boat sounding a channel before entering at low tide.

The chart depth disagrees with the sounder. Sound moves at 1 500 m/s in seawater, and the transducer logs a 0.048 s round trip.