On a rocky exoplanet, the acceleration of gravity near its surface is 9.2 m/s^2. If an alien drops a rock from a cliff, about how fast will it be falling after 3 seconds?
On a rocky exoplanet, the acceleration of gravity near its surface is 9.2 m/s^2. If an alien drops a rock from a cliff, about how fast will it be falling after 3 seconds?
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