[填空题]
A car traveling 85 km/h strikes ajro+c2i +a7 up tree. The front end of the carova1lx*r++zlyd7 x-(,y k czw compresses and the doavr-7+lydzk z*x,yw lc+1 (xriver comes to rest after traveling 0.80 m. What was the average acceleration of the driver during the collisi on? Express the answer in terms of “g’s,” where 1.00 g = 9.8 $m/s^2$ . = $m/s^2$ (retain two decimal places ) g’s