A man standing on the roof a house of he...

A man standing on the roof a house of height `h` throws one particle vertically downwards and another particle horizontally with same velocity `u`. Find the ratio of their velocities when they reach the earth's surface.

`sqrt(2gh+u^(2)):u`

`1:2`

`1:1`

`sqrt(2gh+u^(2)):sqrt(2gh)`

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