The actual meaning of delta in these circumstances

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Delta represents the change or difference in a quantity, specifically in the context of distance and time. In the equation Vs = Δd / Δt, Δd signifies the change in distance (d2 - d1) and Δt signifies the change in time (t2 - t1). This notation is crucial for calculating average speed, as it captures the variation between two points in motion. Understanding delta helps clarify how these changes relate to each other in physics. The discussion emphasizes the importance of grasping this concept for a solid foundation in understanding motion.
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Homework Statement


Please don't make fun of my question, I just want to have a strong understanding of the meaning and it's use

My textbook just pops these symbols out at me without explanation. Maybe it just expects I know this stuff
Code: 
In the equation Vs = [tex]\Delta[/tex] d / [tex]\Delta[/tex] t


I know that d is distance and t is time, so why include the Delta. What is the meaning of Delta itself and in this particular set of instances. Is it looking for a specific type of distance or time. I'm unclear
 
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Delta denotes the difference in the value of a quantity. Suppose you are moving along a st line and you are at a dist d1 from a fixed point O (on the st line) at time t1. Afterward, at time t2, you are at a dist d2 from the same point O. Then we say delta d = d2-d1 and delta t = t2-t1.

Notice that the average speed in moving from first pt to the second is (d2-d1)/(t2-t1) = delta d/ delta t.
 
Thank you shootingstar
 

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