[填空题]
At highway speeds, a partiy xwz.7,spto-yhs7:m cular automobile is capable o w+ a)9xndoul/tj4 g9zf an acceleration of about9w)xo a /9jlutg+n4dz $1.6 m/s^2$ At this rate, how long does it take to accelerate from 80 km/h to 110 km/h ? $\approx$ s (Round to the nearest integer)
