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CG PET Stokes' Law — practice questions

2 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.

**Stokes' law** gives the viscous drag on a small sphere of radius $r$ moving with velocity $v$ through a flui A steel ball of radius 0.3 mm falls at 2 m/s through glycerine ($\eta = 0.833$ N·s/m²). The viscous drag is: