An oil dashpot consists of a piston moving in a cylinder having oil is used for damping vibrations. The piston falls with a uniform speed and covers 50 mm in 100 seconds. If an additional weight of...

An oil dashpot consists of a piston moving in a cylinder having oil is used for damping vibrations. The piston falls with a uniform speed and covers 50 mm in 100 seconds. If an additional weight of 1.34 N is placed on the top of the piston, then it falls through 50 mm in 86 seconds with uniform speed. The diameter of the piston is 75 mm and its length is 100 mm. The clearance between the piston and the cylinder is 1.2 mm which is uniform throughout. Find the viscosity of the oil in poise.