A body accelerates uniformly from rest at 2ms ?2 . Calculate the velocity after traveling

PHYSICS
WAEC 1994

A body accelerates uniformly from rest at 2ms?2. Calculate the velocity after traveling 9m

  • A. 36ms?1
  • B. 18ms?1
  • C. 6ms?1
  • D. 4.5ms?1

Correct Answer: C. 6ms?1

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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