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Position, acceleration, and velocity

AP.PHYS: INT‑3.A (EU), INT‑3.A.1 (EK), INT‑3.A.1.1 (LO), INT‑3.A.1.2 (LO), INT‑3.A.1.3 (LO)
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A boat is stationary at 12, start text, m, e, t, e, r, s, end text away from a dock. The boat then begins to move toward the dock with an acceleration of 5, point, 0, start fraction, start text, m, end text, divided by, start text, s, end text, squared, end fraction.
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, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
start text, s, end text