Crossing a river

chris cambré, Juan Carlos Ponce Campuzano, Oct 28, 2018

Where do you come from if you cross a flowing river by boat? When crossing, you must not only consider the speed of the crossing boat, but also that of the flowing water. Investigate the problem in this GeoGebra book. Adapted from [b]Chris Cambré[/b]


  • 1. Crossing right
  • 2. Arrive straightforward
  • 3. Relative velocity: Boat problem

1.

Crossing right

You cross a river by boat from point A to B. The river flow will move your boat a bit. How far from B will you reach the other side?[br][list][*]Click Reset to return the boat to A.[br][/*][*]Click Start to start the animation.[br][/*][*]With the two check boxes you can show the result both graphically and analytically.[br][/*][*]Experiment with different speeds.[br][/*][/list]
– Juan Carlos Ponce Campuzano

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