A block of base area |ELASTICITY AND VISCOSITY|JEEMAIN2023

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JEE MAIN_2023

S2_290123

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A metal block of base area $0.20 \mathrm{~m}^2$ is placed on a table, as shown in figure. A liquid film of thickness 0.25 mm is inserted between the block and the table. The block is pushed by a horizontal force of 0.1 N and moves with a constant speed. If the viscosity of the liquid is $5.0 \times 10^{-3} \mathrm{PI}$, the speed of block is $\_\_\_\_$ $\times 10^{-3} \mathrm{~m} / \mathrm{s}$.

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