A ball is thrown from the ground to cle...

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 :-

`tan^(-1)((3)/(2))`

`tan^(-1)((2)/(3))`

`tan^(-1)((1)/(2))`

`tan^(-1)((3)/(4))`

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