Question

a spherical ball of diameter 3mm and density 7.8 × 10³ kg/m³ falls vertically through the oil of tail jar and attains a terminal velocity of 0.231 m/s . if density of oil is 1.2×10³kg/m³ find coefficient of viscosity of oil. ans is 0.14​

Answer 1

Answer:

Explanation:

the coefficient  of viscosity of water is

Explanation:

As we know that when a ball is dropped into the viscous liquid then the terminal speed of the ball is given by the formula as

Now we know that

r = 0.3 mm

now we will plug in all data in above equation