- An almost inertia-less metal sheet is placed on a horizontal tabletop lubricated with oil. The sheet is a square of side lengthl 1.0 m and the oil layer has thickness h coincides with one edge of the table. The sheet is pulled outwards without rotation with a constant force F= 15 N. If coefficient of viscosity of the oil is n 0.2 N s/m2, how long will it take to pull half of the sheet 1.0 mm. Initially one edge of the sheet out of the table? 3713 tube
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