Physics
WAEC 2007
A body accelerates uniformly from rest at 2ms
-2. Calculate the magnitude of its velocity after travelling 9m
-
A.
4.5 ms-1
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B.
6.0ms-1
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C.
18.0-1
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D.
36.0-1
Correct Answer: Option B
Explanation
v = \(\sqrt{U^2} + 2as = \sqrt{0^2} + 2 \times 2 \times 9 = 6\)m/s
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