A Truck Has a 300-Kg Load That Is Not Secured $2$

Multiple Choice

A truck has a 300-kg load that is not secured. The maximum frictional force between the load and the truck bed is 400 N. What is the maximum acceleration that the truck can have so that it does not lose the load?

A) 0.8 m/s $2$
B) 1.8 m/s $2$
C) 2.3 m/s $2$
D) 1.3 m/s $2$