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Mathematics 9 Online
OpenStudy (anonymous):

formula h = -1/2gt^2 + vot + ho for the height of an object under the force of gravity, with g = 32 ft/sec^2 or 9.8 m/sec^2. Leilani dropped an acorn from her tree house. It took 1.1 seconds to hit the ground below. a) Find the height in feet from which she dropped the acorn. b) She throws an acorn up. This one takes 1.4 seconds to hit the ground. What was the initial upward velocity of the second acorn?

OpenStudy (anonymous):

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