A ball is thrown from the ground to clear a wall $3\,m$ high at a distance of $6\,m$ and falls $18\,m$ away from the wall, the angle of projection of ball is
A ball is thrown from the ground to clear a wall $3\,m$ high at a distance of $6\,m$ and falls $18\,m$ away from the wall, the angle of projection of ball is
- A
$\tan ^{-1}\left(\frac{3}{2}\right)$
- B
$\tan ^{-1}\left(\frac{2}{3}\right)$
- C
$\tan ^{-1}\left(\frac{1}{2}\right)$
- D
$\tan ^{-1}\left(\frac{3}{4}\right)$
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