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A spherical solid ball of volume V is ma...

A spherical solid ball of volume V is made of a material of density `rho_1`. It is falling through a liquid of density `rho_2(rho_2ltrho_1)`. Assume that the liquid applies a viscous force on the ball that is proportional to the square of its speed v, i.e., `F_(viscous)=-kv^2(kgt0)`. The terminal speed of the ball is

A

`(vgrho_1 - rho_2) /k `

B

` sqrt (Vgrho_1 - rho_2) /k `

C

`Vg rho_1 /k `

D

`sqrt Vg rho_1 /k `

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SL ARORA-Mechanical Properties of fluids-Exercise
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