In the preceding problem we saw that a person's reaction

time is generally not quick enough to allow the person to catch a \(\$ 1\) bill dropped between the fingers. The \(16 \mathrm{~cm}\) length of the bill passes through a student's fingers before she can grab it if she has a typical \(0.25 \mathrm{~s}\) reaction time. How long would a bill need to be for her to have a good chance of catching it?