Horizontal and vertical motions of a projectile are independent of each other. What is meant by this?.

It means that horizontal and vertical motions are independent to each other, which means they don't influence one another.Definition of motion in physics Motion in physics is defined to be a change in position of an object over time. We can describe motion in terms of displacement/distance, time, velocity/speed, acceleration and the like.There is one-dimensional motion and there is also two-dimensional motion. In two-dimensional motion, there are horizontal motion and vertical motion. Horizontal motion is a projectile motion in a horizontal plane. Meanwhile, vertical motion is a projectile motion in a vertical plane. Both motions are independent, meaning that they don't actually influence each other.Learn more about motion here: https://brainly.com/question/11213880#SPJ4