(Solved): A car drives down a road in such a way that its velocity (in \( \mathrm{m} / \mathrm{s} \) ) at tim ...

A car drives down a road in such a way that its velocity (in \( \mathrm{m} / \mathrm{s} \) ) at time \( t \) (seconds) is \[ v(t)=t^{1 / 2}+4 \] Find the car's average velocity (in \( \mathrm{m} / \mathrm{s}) \) between \( t=2 \) and \( t=8 \).