[填空题]
A flatbed truck is carryij/ s i:5joql rh,gp;w1j 2fst;q:1m9 ( sxlo 4xat:cjwng a heavy crate. The coefficient of static friction between the crate and the bed of the truck is 0.75. What is the maximum rate at which the driver can decelerate and still avoid having the crate slide against thx1l to(j cm9swqxa:4: e cab of the truck?
