How is the combined center of gravity formed on a lift truck?

The combined center of gravity on a lift truck is formed by considering the weights and positions of both the truck and its load. It is the point where the total weight of the truck and the load can be considered to act vertically downward. When the load is raised, the center of gravity shifts, affecting the truck's stability. Proper load handling and positioning are essential to maintain the center of gravity within safe limits to prevent tipping.