Physics, 23.10.2020 22:10, nando3024

An astronaut drops a rock on planet X from a height of 0.72 m above the ground. If it takes 0.63 seconds for the rock to strick the ground, what is the acceleration of planet X?

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An astronaut drops a rock on planet X from a height of 0.72 m above the ground. If it takes 0.63 sec...