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If \( R \) and \( H \) are the horizontal range and maximum height attained by a projectile, than its speed of
\( \mathrm{P} \) projection is

W
(1) \( \sqrt{2 g R+\frac{4 R^{2}}{g H}} \)
(2) \( \sqrt{2 g H+\frac{R^{2} g}{8 H}} \)
(3) \( \sqrt{2 g H+\frac{8 H}{R g}} \)
(4) \( \sqrt{2 g H+\frac{R^{2}}{H}} \)
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