The maximum range of a gun on horizontal terrain is \( 16 \mathrm{~km} \). If \( g=10 \mathrm{~m...

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The maximum range of a gun on horizontal terrain is \( 16 \mathrm{~km} \). If \( g=10 \mathrm{~m} / \mathrm{s}^{2} \). What must be the muzzle velocity of the shell
[KCET 1999; BHU 2003]
(a) \( 200 \mathrm{~m} / \mathrm{s} \)
(b) \( 400 \mathrm{~m} / \mathrm{s} \)
(c) \( 100 \mathrm{~m} / \mathrm{s} \)
(d) \( 50 \mathrm{~m} / \mathrm{s} \)
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