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In fact, the integral of the Y-point on the velocity curve gives the average value of each velocity Y-value within the X corresponding to this Y-point.
Multiplying this average value by X gives the accurate distance traveled by the object in this part.
However, when mathematics establishes calculation methods, it actually uses the ratio of distance to time to calculate the limit at a certain Y-point.
This calculation result should actually also be a kind of velocity or represent a velocity at the Y-point.
And the curve has a representation of the velocity Y-value at this Y-point.
This indicates that the Y-value at this curve point has two differently expressed velocity values or two different velocity values.
In mathematical research, or when mathematicians first calculated this other velocity value, they may not have been clear about what exactly this other velocity value, which can also represent the object's velocity, actually represents.
What is its relationship with another velocity Y, which is represented by the same X on the velocity curve?
Thus, mathematicians may have had a sudden insight and set these different velocity values as different velocity values with a derivative relationship.
But the derivative calculated from the limit velocity value obtained cannot yield the actual derivative.
To obtain the correct calculation conclusion for the derivative, we need to divide this velocity obtained by finding the limit by a constant value corresponding to the derivative to be found.
The velocity value obtained by finding the limit becomes an integral form after adding this constant.
Only then is it the true average velocity value.
Although the average value of the velocity at each point on the curve is obtained by integrating the Y-value of the velocity.
But this average value actually still has the form of distance.
It still represents the product of velocity and time.
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