A smooth spherical ball of radius 1cm an...

A smooth spherical ball of radius `1cm` and density `4xx10^(3)kg//m^(3)` is dropped gently in a large container containing viscous liquid of density `2xx10^(3)kg//m^(3)`, and `eta=0.1 N-s//m^(2)`. The distance moved by the ball in `t=0.1sec` after it attains terminal velocity is

`4/5" m "up`

`4/9" m "up `

`2/3" m "` down

` 4/9" m "` down

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