This is probably a very easy calculation to do, but I cant seem to solve it/confirm its 100% correct.
Lets say we have the following data to calculate the average speed with:
- distance from A to B = 1243 meters
- default speed to move an object from A to B = 2030 meters per second
The first 118 meters are at a speed of 1450 meters per second.
After those 118 meters its back to its default value of 2030.
Im unsure if the result of my calculation is correct.
This was my calculation:
vavg = 1243 / ((118/1450) + ((1243-118)/2030))
= 1243 / (.08 + .55)
= 1973 m/s.
Average speed is total distance divided by total time.
Time taken for first leg = $\frac{118} {1450} $ seconds.
Time taken for second leg = $\frac{1243-118} {2030} $ seconds.
So average speed = $\frac{1243} {\frac{118} {1450} +\frac{1243-118} {2030}} \approx 1956 ms^{-1} $