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OpenStudy (anonymous):
A ball is thrown directly downward with an initial speed of 7.10 m/s, from a height of 30.8 m. After what time interval does it strike the ground?
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OpenStudy (anonymous):
use the eqn \[s=ut+1/2at^2\] u=7.10 a=9.8 s=30.8 then solve for t i think the answer is 1.88
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