Final answer:
The bouncing of the trailer suggests that it is more likely heavily loaded rather than nearly empty due to the occurrence of oscillation.
Step-by-step explanation:
The bouncing of the trailer indicates that there is a motion known as oscillation occurring. Oscillation is the repetitive back-and-forth motion of an object. In the case of the trailer, it means that the trailer is moving from side to side.
The occurrence of oscillation in the trailer suggests that it is more likely heavily loaded rather than nearly empty. When a heavily loaded trailer is moving, it tends to oscillate or sway more than a nearly empty trailer due to the additional weight and the momentum generated by the moving vehicle.
In summary, the bouncing or swaying of the trailer indicates that it is more likely heavily loaded.