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Answer to Question #1018 in Mechanics | Relativity for sabeen

Question #1018
To determine freefall acceleration on a moon with no atmosphere, you drop your handkerchief off the roof of a baseball stadium there. The roof is 113 meters tall. The handkerchief reaches the ground in 18.2 seconds. What is freefall acceleration on this moon? (State the result as a positive quantity.)
Expert's answer
From the equations of the motion
h = gt2/2;
g = 2h/t2 = 2*113 / 18.22 = 0.68 m/s2

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