A ship is designed to sail at a speed of $8 \mathrm{~m} \cdot \mathrm{~s}^{-1}$. A designer makes a $1/10$ scaled model to test the ship in a water tunnel. The model and the ship satisfy the dynamic similarity. The speed (in $\mathrm{m} . \mathrm{s}^{-1}$) of the model is $\_\_\_\_$. (rounded off to two decimal places)