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A boy throws a stone straight upward with an initial speed of 15m/s. What maximum height will the stone reach before falling back down?

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Luanaid
[tex]height=\frac{velocity^2}{2gravity}\\\\ velocity=15\frac{m}{s}\\\\ g=9,8\frac{m}{s^2}\\\\height=\frac{15^2}{2*9,8}=\frac{225}{19,6}\\\\ \boxed{height=11,48\ meters}[/tex]

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