Uniform speed of 2 cm diameter ball is 2...

Uniform speed of 2 cm diameter ball is `20cm//s` in a viscous liquid. Then, the speed of 1 cm diameter ball in the same liquid is

`80cms^-1`

`40cms^-1`

`20cms^-1`

`5cms^-1`

Text Solution

Verified by Experts

The correct Answer is:

`vpropr^2`
Since `r` becomes one-half therefore `v_0` becomes one-fourth

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