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  • 24-11-2017
  • Physics
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A coin is dropped. What is its displacement after 0.30 s.

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feynman135
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  • 24-11-2017
Assuming this coin is on earth and that it wasn’t dropped forcefully:
Use the formula d = 1/2at^2. Rewriting using a=g and solving for height h gets us h = 1/2(9.8)t^2.
In this case that would get that the change in height h is 0.5(9.8)(0.3^2) = 0.441 m.
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