A fluid sample is subjected to a "sliding plate" (simple shear) test. The area of the plates is $100 \pm 0.01 \mathrm{~cm}^{2}$ and the spacing between them is $2 \pm 0.1 \mathrm{~mm}$. When the moving plate travels at a speed of $0.5 \mathrm{~cm} / \mathrm{s}$, the force required to move it is measured to be $150 \mathrm{dyn}$, and at a speed of $3 \mathrm{~cm} / \mathrm{s}$, the force is $1100 \mathrm{dyn}$. The force transducer has a sensitivity of $50 \mathrm{dyn}$. What can you deduce about the viscous properties of the sample?