First, the vertical points of the center of gravity, the front axle and the center of gravity can form a right triangle. The angle between the front axle of the center of gravity and the ground is 30, the length of the ground is 2.6M, the distance between the vertical point and the rear axle is 4M, and the angle is 44. The truck is driven by the rear wheel, so the angle between the center of gravity and the connecting line between the rear axle and the ground should not be greater than 90. The maximum climbing degree of the truck is 45, while the angle in the topic is 72, so the truck will definitely roll over.