A ball is projected from the ground with a speed \( 15 \mathrm{~ms}^{-1} \) at an angle 0 with h...

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A ball is projected from the ground with a speed \( 15 \mathrm{~ms}^{-1} \) at an angle 0 with horizontal so that its range and maximum height are equal, then \( \tan \theta \) will be equal to
(a) \( \frac{1}{4} \)
(b) \( \frac{1}{2} \)
(c) 2
(d) 4
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