[填空题]
A flatbed truck is ca. tqtmuup(kmi 6ri,efa (+i0 .rlov6q0x 00w ;mgumrp1 rying a heavy crate. The coefficient of static friction between the crate and the bed of the truck is 0.75. What is the maximumpmgu 0m1q 0r6lw;xo0v rate at which the driver can decelerate and still avoid having the crate slide against the cab of the truck?
