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x = 1/2 G t2 = 1/2 (9.8) (2)2 = 4.9 x 4 = 19.6 meters

x = 1/2 G t2 = 1/2 (32.2) (2)2 = 16.2 x 4 = 64.4 feet

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Q: If an object dropped from the top of a building reached the ground in 2 seconds and how tall is the building?
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