[填空题]
In coming to a stop, a car leaves skidy vd 5*kwr adebm7z)(6j96fp cll1 yi, marks s1uvzh 0no zj.dnx,dv srr6 ; -:o:j;g92 m long on the highway. Assuming a d.j shrd-osj ;1o: ,dx0r nuvn gz6z;v:eceleration of $7.00 \; m/s^2$, estimate the speed of the car just before braking. $m/s$
