What is the acceleration due to gravity on the planet

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An astronaut on a distant planet wants to determine its acceleration due to gravity. The astronaut throws a rock straight up with a velocity of + 20.0 m/s and measures a time of 28.6 s before the rock returns to his hand. What is the acceleration due to gravity on this planet? (positive = up, negative = down)

Reference no: EM13997824

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