[填空题]
A fugitive tries to k.uy5klwstqs )(k(oxpq+dx5 * 2 *wyk hrr+(ssk+cah0 op on a freight train traveling at a constant speed of 6.0 m/s Just r+ ra0k+ c(shsas an empty box car passes him, the fugitive starts from rest and accelerates at $a\,=\,4.0 m/s^2$ to his maximum speed of 8.0 m/s
(a) How long does it take him to catch up to the empty box car? s
(b) What is the distance traveled to reach the box car? m