A Parallel Plate of Area 400 Cm² Is Dragged Over

question 5

Multiple Choice

A parallel plate of area 400 cm² is dragged over a 0.20 cm thick layer of oil at a speed of 30.0 cm/s. It takes a force 1.20 N applied to the plate to sustain this speed. What is the viscosity of the oil?

• A)6.00 kg/(m∙s)
• B)20.0 kg/(m∙s)
• C)60.0 kg/(m∙s)
• D)0.200 kg/(m∙s)
• E)200 kg/(m∙s)