I sneak onto a certain eccentric billionaire's rocket to get a free shuttle to the moon (I also possibly "borrow" some astronaut gear from them). Anyway, the gravitational acceleration on the moon's surface is approximately –2. Suppose I take a moon rock up to a cliff of 12 meters and toss it down to the surface below at a speed of 1ª. When will the rock hit the surface of the moon?

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