# Problem №1 (10 points)

A stone is thrown from the surface of the Earth at an angle of $60^{\circ}$ to the horizon with an initial velocity $v_{0}=10 \mathrm{~m} / \mathrm{s}$. Determine the radius of curvature of the trajectory at the final point of the flight. The acceleration due to gravity $g=10 \mathrm{~m} / \mathrm{s}^{2}$.

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