A particle is projected from ground at some angle with the horizontal. Let \( P \) be the point ...

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A particle is projected from ground at some angle with the horizontal. Let \( P \) be the point at maximum height \( H \). At what height above the point \( P \) should the particle be aimed to have range equal to maximum height?
(1) \( H \)
(2) \( 2 \mathrm{H} \)
(3) \( \mathrm{H} / 2 \)
(4) \( 3 \mathrm{H} \)
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