Combining rates - upstream, downstream in {time, distance} plane
This applet is a workbench for the exploration of all upstream-downstream problems.
It opens with the solution to the following problem -
An airplane can fly 3000 miles in 6 hours if there is no wind.
It can fly that distance in 7.5 hours when it flies against the wind.
It can fly that distance in 5 hours when it flies with the wind.
How fast does the wind blow?
- GOING FURTHER
1. Use this applet to generate several different upstream-downstream problems.
2. Compare this applet to "Combining rates I - Joe & Sam paint a wall.
How is it similar? different?