Problem 2
Find the arclength of the curve given by the vector valued function \( \vec{r}(t) = (5 \sin(t), t, 5 \cos(t)) \) for the section
between the points \( (x, y, z) = (0, 0, 5) \) and \( (0, 2\pi, 5) \).
Problem 3
Evaluate the line integral of \( f(x) = x + y \) on the straight-line segment from \( (0, 1, 0) \) to \( (1, 0, 0) \).