A flatbed truck is carrying a 20.0-kg crate along a level road. The coefficient of static friction between the crate and the bed is 0.400. What is the maximum acceleration that the truck can have if the crate is to stay in place?
[A] 3.92 m/s2
[B] 8.00 m/s2
[C] 31.2 m/s2
[D] 78.5 m/s2
[E] 196 m/s2
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