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 moves to the right with a constant speed of 0.17 m/s The coefficient of viscosity of liquidis .......

A metal block of base area 0.2m^(2) is connected to a 0.02 kg mass via

1.	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 moves to the right with a constant speed of 0.17 m/s The coefficient of viscosity of liquidis .......
Answer» `3.45xx10^(3)PAs` `3.45xx10^(-2)Pas` `3.45xx10^(-3)Pas` `3.45xx10^(2)Pas` SOLUTION :Viscous FORCE , `F=etaA(DELTAV)/(Deltax)` `thereforeeta=(FDeltax)/(ADeltaV)` `=(mgDeltax)/(ADeltaV)` `=(0.2xx9.8xx6xx10^(-4))/(0.2xx0.17)` `thetaeta=34.58xx10^(-4)` `thereforeeta=3.45xx10^(-3)Pa*s`