$1\mathrm{.}8$ Check Your Understanding A high school track coach has just purchased a new stopwatch. The stopwatch manual states the stopwatch has an uncertainty of $-0\mathrm{.}05s.$ Runners on the track coach's team regularly clock $100-m$ sprints of $11\mathrm{.}49$ s to $15\mathrm{.}01$ s $.$ At the school's last track meet, the first$-$place sprinter came in at $12\mathrm{.}04$ s and the second$-$place sprinter came in at $12\mathrm{.}07$ s $.$ Will the coach's new stopwatch be helpful in timing the sprint team? Why or why not?