The center of gravity of a loaded truck depends on how the truck is packed. If it is 4.0 m high and 2.4 m wide, and its CG is 2.2 m above the ground, how steep a slope can the truck be parked on without tipping over (Fig. 9-61)?
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At maximum inclination that the truck can stay, the center of mass of the truck must be directly over the lower corner of the truck. The weight vector drawn downward from the center of mass of the truck pass over the corner.
The angle of incline θ is equal to the angle between the weight vector m.g and normal to the surface of inlined plane.