👉 Instantial is a concept in physics that describes the state of a particle at its momentary location or time. Instantials are often used to describe situations where an object is stationary, like when it's on top of a hill, or when it's at rest. For example, if you're standing at your house and look up, you will see that it is "instantaneous" because there is no change in the position of the earth. Similarly, if you are looking at a wall from