A man runs across the roof-top of a tall building and jumps horizontally with hope of landing on the roof of the next building which is at a lower height than the first. If his speed is ` 9 m//s`,the horizontal distance between the two buildings is ` 10 m` and height difference is ` 9 m`, will he be able to land on the next building ? (take `g=10 m//s^(2)`).