A metal block of base area 0.2m$$^2$$ is connected to a 0.02 kg mass via a string that passes over an ideal pulley as shown in figure. A liquid film of thickness 0.6 mm is placed between the block and the table. When released the block moves to the right with a constant speed of 0.17 m/s. The co-efficient of viscosity of the liquid is :

A

$$3.45 \times 10^3$$ Pa - s

B

$$3.45 \times 10^{-2}$$ Pa - s

C

$$3.45 \times 10^{-3}$$ Pa - s

D

$$3.45 \times 10^2$$ Pa - s