A flat plate (1.2m x 1.2m x 0.2cm) weights 40 N and is sandwiched between two fixed walls as you can see in figure below. The gab is filled with oil of viscosity 2.0 Ns/m² and a specific gravity of 0.9. Find the force required to left up the plate with a velocity of 0.15 m/s. F 1.0 1.0 cm cm 0.2 cm

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Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.