[填空题]
Drag-race tires in contio:mo:n /ggb.l 45cbp act w4gz c( lz6c5nqith an asphalt surface have a very high coefficient ofzln (564zgcq c static friction.
Assuming a constant acceleration and no slipping of tires, estimate the coefficient of static friction needed for a drag racer to cover 1.0 km in 12 s , starting from rest.
