8. Suppose a boat is travelling $35 \mathrm{~m} / \mathrm{s}$, the direction of the vector is 105 degrees. Annotate the polar representation of the velocity:

Step 1 ：Suppose a boat is travelling $35 \mathrm{~m} / \mathrm{s}$, the direction of the vector is 105 degrees. Annotate the polar representation of the velocity:

Step 2 ：The polar representation of the velocity is \(\boxed{(35 \mathrm{~m/s}, 105^{\circ})}\)