Answer
5 ft/min
Work Step by Step
We know that if point $P$ is a point on a circle of radius $r$, and $P$ moves in a distance $s$ on the circumference of the circle in an amount of time $t$, then the linear velocity, $v$, of $P$ is calculated as $v=\frac{s}{t}$.
We are given that $s=10$ ft and $t=2$ min.
Therefore, $v=\frac{10ft}{2min}=\frac{10ft\div2}{2min\div2}=\frac{5ft}{1min}=5$ ft/min.