What effect does the size of the rock have on the angle?

The size of the rock affects the angle of impact and trajectory primarily due to its mass and the force of gravity acting on it. Larger rocks have greater mass, which can result in a steeper angle when they strike a surface, as they are influenced more by gravitational pull. Additionally, the size can affect the rock's momentum and the way it interacts with the environment, potentially altering the angle of movement after impact. Ultimately, the relationship between size and angle is influenced by both physical properties of the rock and external forces.