A plate of area 4 m2 is made to move horizontally with a speed of 4 m/s by applying a horizontal tangential force over the free surface of a liquid. If the depth of the liquid is 2 m and the liquid is in contact with the bed which is stationary. Co-efficient of viscosity of liquid is 0.01 poise. The tangential force needed to move the plate is (in 10−3 N)

A plate of area 4 m2 is made to move horizontally with a speed of 4 m/

1.	A plate of area 4 m2 is made to move horizontally with a speed of 4 m/s by applying a horizontal tangential force over the free surface of a liquid. If the depth of the liquid is 2 m and the liquid is in contact with the bed which is stationary. Co-efficient of viscosity of liquid is 0.01 poise. The tangential force needed to move the plate is (in 10−3 N)
Answer» A plate of area $4 m^{2}$ is made to move horizontally with a speed of $4 m/s$ by applying a horizontal tangential force over the free surface of a liquid. If the depth of the liquid is $2 m$ and the liquid is in contact with the bed which is stationary. Co-efficient of viscosity of liquid is $0.01 poise$ . The tangential force needed to move the plate is (in $10^{- 3} N)$

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