There is a flat plate with a base area of 5 kg, sliding along the slant at

Question:

There is a flat plate with a base area of 5 kg, sliding along the slant at an angle of 20° with the horizontal plane 60 cm times 40 cm × 60 c m times 40 cm. The thickness of the oil layer between the plane and the slant is 0.6 mm. If the sliding speed is 0.84 m/s, the dynamic viscosity μ of oil.

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