A metal block of base area \( 0.20\,\text{m}^{2} \) is placed on a table, as shown in figure. A liquid film of thickness \( 0.22\,\text{mm} \) is inserted between the block and the table. The block is pushed by a horizontal force of \( 0.1\,\text{N} \) and moves with a constant speed. If the viscosity of the liquid is \( 5.0\times 10^{-3}\,\text{Pl} \), the speed of block is ______ \( \times 10^{-3}\,\text{m/s} \).
