An aeroplane moving horizontally with a speed of \( 720 \mathrm{~km} / \mathrm{h} \) drops a foo...

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An aeroplane moving horizontally with a speed of \( 720 \mathrm{~km} / \mathrm{h} \) drops a food pocket, while flying at a height of \( 396.9 \mathrm{~m} \). the time taken by a food pocket to reach the ground and its horizontal range is (Take \( g=9.8 \mathrm{~m} / \mathrm{sec}^{2} \) )
(a) \( 3 \mathrm{sec} \) and \( 2000 \mathrm{~m} \)
(b) \( 5 \mathrm{sec} \) and \( 500 \mathrm{~m} \)
(c) \( 8 \mathrm{sec} \) and \( 1500 \mathrm{~m} \)
(d) \( 9 \mathrm{sec} \) and \( 1800 \mathrm{~m} \)
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