[填空题]
A car at the Indianapolis 500 acce:c ska-k8n*w6m6 tkqllerates uniformly from the pit mjlc k0;re 3:l8r;blljr40tzfd ;c ,narea, going from rest to 320km/h in a semicircular arc with a radius of 220 m. Determine the tangential and radial acceleration of the car when it is halfway through the turn, assuming constant tangential acceleration. If the curve wlm ;;3: dn0e rrzfrbjtkcl,c j;l04l8ere flat, what would the coefficient of static friction have to be between the tires and the road to provide this acceleration with no slipping or skidding? $\approx$
