Question

a drop of radius 1.0 cm falls with a uniform speed 1.0 /s inside a fluid. if the coefficient of viscosity of the fluid 1.0 *10^2 kg/ms , then find the value of viscous force acting on the drop.​

Answer 1

$\large\red{Solution:-}$

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a drop of radius 1.0 cm falls with a uniform speed 1.0 /s inside a fluid. if the coefficient of viscosity of the fluid 1.0 *10^2 kg/ms , then find the value of viscous force acting on the drop.

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.Radius=1cm

Speed=1m/s=100cm/s

Viscosity=1×10^2kg/ms

Force =?

F=6π*viscosity*radius*speed

=6*3.14*1*10^2*1*100

=18,840m/s

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