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If A ball is dropped from the top of a building and hits the ground 4 seconds later then how tall is the building?
Wiki User
∙ 12y ago
s = 1/2*g*t2 where g is the acceleration due to gravity which, on the surface of the earth is approximately 9.8 metres/second2
So t = 4 gives s = 1/2*9.8*42 = 78.4 metres.
Wiki User
∙ 12y ago
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