Physics
WAEC 1994
A body accelerates uniformly from rest at \(2ms^{-2}\). Calculate the velocity after traveling 9m
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A.
36\(ms^{-1}\)
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B.
18\(ms^{-1}\)
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C.
6\(ms^{-1}\)
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D.
4.5\(ms^{-1}\)
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E.
4.24\(ms^{-1}\)
Correct Answer: Option C
Explanation
\(V^2= U^2+2as\) =\(0+ 2\times 2ms^{-2}\times 9 =36ms^{-1}\) thus
V=\(\sqrt{36m^2s^{-2}}\) = \(6ms^{-1}\)
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