A ball of mass 0.3g dropped in a liquid ...

A ball of mass 0.3g dropped in a liquid density 1.3 g/cc attain terminal velocity after some time, If density of ball is 8g/cc find viscous force on ball

a.`3.5 xx 10^-3 N`

b.`2.5 xx 10^-3 N`

c.`2.5 xx 10^-6 N`

d.`5.5 xx 10^-3 N`

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