Its nighttime and youve dropped your goggles into a, Ask an Expert

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It's nighttime, and you've dropped your goggles into a swimming pool that is 3.0m deep. If you hold a laser pointer 1.2m above the edge of the pool, you can illuminate the goggles if the laser beam enters the water 3.0m from the edge.

How far are the goggles from the edge of the pool?

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