A block of mass 2kg is going down an incline over a fluid having some – McqOptions

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1.	A block of mass 2kg is going down an incline over a fluid having some viscosity. The block moves with a constant speed of 5m/s. Assuming that the temperature of fluid remains constant, find the coefficient of viscosity of the fluid. Angle of incline is 30° & block is a cube of side 1m. Also given that the thickness of fluid is 1cm.
A.	2 poise
B.	0.2 poise
C.	0.17 Ns/m2
D.	1.7 poise
Answer» C. 0.17 Ns/m2

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