Question

A sphere of radius 'a' moving with velocity v under
streamline conditions in a viscous fluid experiences
a retarding force F given by F= K a v where K is a
constant. The dimensions of K are
(a) M° LTO
(b) ML-1 T-1
(c) ML-2 1-1
(d) ML-2 T-2
​

Answer 1

Answer:

as you familiar with the stokes law which talks about the amount of sphere  in the viscous fluid and give us the retarding force

F = 6πηrv

where r is the radius of the sphere and v is the velocity

ATQ

[MLT^-2] = K [L][LT^-1]

[ML^-1T-1]

hope this helps love

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