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A very small particle rests on the top o...

A very small particle rests on the top of a hemisphere of radius `20 cm`. Calculate the smallest horizontal velocity to be given to it if it is to leave the hemisphere without sliding down its surface, take `g = 9.8 m//s^(2)`.

A

`sqrt(9.8) m//s`

B

`sqrt(4.9) m//s`

C

`sqrt(1.96) m//s`

D

`sqrt(3.92) m//s`

Text Solution

Verified by Experts

The correct Answer is:
C
`V_("min") = sqrt(r g)`
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