[填空题]
At highway speeds, a/ ,.ux*lxcx sw)ckc -b particular automobile is capable of an accelex2ep-2/qt7qb 4d hhofration of about qqod b4etp2/ x2hf7h -$1.6 m/s^2$ 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)