Question

When a small sphere moves at low speed through a fluid, the viscous force F

opposing the motion, is found experimentally to depend on the radius ‘r’, the velocity v

of the sphere and the viscosity η of the fluid. Find the force F (Stoke’s law)....please answer the question and also explain it..... please ​

Answer 1

Answer:

Stokes' law describes sedimentation of particles in liquids and can be used to measure viscosity. Particles in liquids achieve terminal velocity quickly. One can measure the time it takes for a particle to fall a certain distance and then use Stokes' law to calculate the viscosity of the liquid.

Explanation:

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