Final answer:
It involves the study of forces and motion. The question asks about the height of the tailgate and the incline of a ramp used for loading a truck.
Step-by-step explanation:
The subject of this question is Physics. Specifically, it involves the study of forces and motion. The question asks about the height of the tailgate and the incline of a ramp used for loading a truck.
To determine the height of the tailgate, we need to know the distance from the ground to the tailgate. If the tailgate is 3 feet above the ground, then the height can be denoted as 3 feet.
The incline of the ramp is given as 38 degrees. This angle represents the steepness of the ramp. It is an important factor in calculating the forces acting on the truck and the effort required to load or unload it.