[填空题]
A flatbed truck is carrying a heavy3 ywopps 3st4(.y10 a r4of4iirndtii,-rfg +ui2x8xcrate. 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 tha4 u r 8ixftir10gnfo.4yrd- 2xii ,i+e cab of the truck?
