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Flauer [41]
3 years ago
10

A plate has an area of 1m square. It slide down an incline plane , having an angle of inclined 60° to horizontal, which a veloci

ty of 0.75m/s. The thickness of oil film between the plate and the plate is 2mm. Find the viscosity of the fluid if the weight of the plate is 90N
Physics
1 answer:
Solnce55 [7]3 years ago
3 0

Answer:

\mu =0.169704 Ns/m^2

Explanation:

From the question we are told that

Area of platea=1m^2

Angle of inclination \theta=60 \textdegree

Velocity v=0.75m/s

Thickness of oil t=2mm

Weight of plate w=90N

Generally the equation for shear force is mathematically given by

F=mgsin45 \textdegree

F=90sin45 \textdegree

F=63.639N

F=\mu* \frac{v}{t}

F=\mu* \frac{0.75}{2*10^-^3}

\mu* \frac{0.75}{2*10^-^3}=63.639N

\mu =\frac{63.639}{375}

Therefore viscosity is given by

\mu =0.169704 Ns/m^2

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