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amd123
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Homework Statement
Two recording devices are set 2400 feet apart, with the device at Point A to the west of the device at point B. At a point on a line between the devices, 400 feet from point B, a small amount of explosive is detonated. The recording devices record the time the sound reaches each one. How far directly north of site B should a second explosion be done so that the measured time difference recorded by the devices is the same as that for the first detonation?
Homework Equations
I have no clue.
The Attempt at a Solution
I've tried drawing a diagram and setting up an equation like this:
(x^2/(400^2))-(y^2/800sqrt(2))=1
now I have no idea if that is right or what to do after that.