The center of gravity of the truck
The center of gravity of the truck
The position of an object has no effect on the location of its center of gravity. It may have an effect on the truck's center of gravity, however, if the truck's load shifts on the incline. But that's the result of an actual shift in the center of gravity, not the result of the incline.
A lorry does
The placement of the center of gravity (CG) and the center of lift (CL) affects pitch stability. When engineers design an airplane, it is usually designed so the center of gravity is placed forward of the center of lift. With this "built in stability" if a plane goes into an abrupt dive, the aerodynamic forces will bring the nose back up to level flight.
It would be much easier to lift a truck on the moon because there is no gravity out in space, so it would be simpler and not as heavy.
We can't jump or lift anything.
What is the weight and dimensions of the intended load? What is the heighth of lift?
being a maintained center of gravity
Yes, it is possible to make yourself harder to lift. By shifting your center of gravity , which is usually referred to as your hips, down you can make it much harder to be lifted. It depends on which kind of lift, but this usually does the trick. <><><><> Shifting your center of gravity does not make you heavier. It shifts the point where your body is balanced.
It is best to keep the center of gravity low on any road vehicle. This can be done by design, and by loading the heaviest items lowest with lighter items higher up. So to answer your question, they need as low a center of gravity as is physically possible.
lift and gravity are related because they are both forces of aerodynamics