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Position, acceleration, and velocity

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A boat is stationary at 12meters away from a dock. The boat then begins to move toward the dock with an acceleration of 5.0ms2.
How long will it take the boat to reach the dock?
Your answer should have two significant figures.
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi