A plate of area `2m^(2)` is made to move horizontally with a speed of `2m//s` by applying a horizontal tangential force over the free surface of a liquid. If the depth of the liquid is 1m and the liquid in contact with the bed is stationary. Coefficient of viscosity of liquid is `0.01` poise. Find the tangential force needed to move the plate.

A large wooden plate of area 10m^2 floating on the surface of river is made to move horizontally with a speed of 2ms^-1 by applying a tangential force. If the river is 1m deep and the water in contact with the bed is stationary, find the tangential force needed to keep the plate moving. Coefficient of viscosity of water at the temperature of the river =10^-2 poise.

A large wooden plate of area 10m^2 floating on the surface of river is made to move horizontally with a speed of 2ms^-1 by applying a tangential force. If the river is 1m deep and the water in contact with the bed is stationary, find the tangential force needed to keep the plate moving. Coefficient of viscosity of water at the temperature of the river =10^-2 poise.

A large wooden plate of area 10m^2 floating on the surface of river is made to move horizontally wilth a speed of 2ms^-1 by applying a tangential force. If the river is 1m deep and the water contact with the bed is stationary, find the tangential force needed to keep the plate moving. Coefficient of viscosity of water at the temperature of the river =10^-2 poise.

A large wooden plate of area 10m^2 floating on the surface of river is made to move horizontally wilth a speed of 2ms^-1 by applying a tangential force. If the river is 1m deep and the water contact with the bed is stationary, find the tangential force needed to keep the plate moving. Coefficient of viscosity of water at the temperature of the river =10^-2 poise.

A large wooden plate of area 10m^2 floating on the surface of river is made to move horizontally wilth a speed of 2ms^-1 by applying a tangential force. If the river is 1m deep and the water contact with the bed is stationary, find the tangential force needed to keep the plate moving. Coefficient of viscosity of water at the temperature of the river =10^-2 poise.

A boat of area 10m^(2) floating on the surface of river is made to move horizontally with a speed of 2m/s by applying a tangential force. If the river is 1 m deep and the water in contact with the bed is stationary, find the tangential force needed to keep the boat moving with constant speed. ("coefficient of viscosity of water "=10^(-2)" poise")

A metal plate 10 cm square rests on a 2 mm thick caster oil layer. Coefficient of viscosity of caster oil is 15 poise. The horizontal force needed to move the plate with speed 3 cm s^-1 is