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On planet #5, a stone dropped from a height of 55.3 m above the ground will...

On planet #5, a stone dropped from a height of 55.3 m above the ground will hit the ground at a speed of 39.5 m/s. What is the value of g for planet #5?

38.71 m/s^2

28.21 m/s^2

77.42 m/s^2

14.11 m/s^2
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