A car starts on the motorway in Linz and drives with 110 km/h in the direction of Vienna, which is 170 km from Linz. At the same time, a truck starts in Vienna on its way to Linz with 80 km/h.

(a) Play the animation in the upper window and describe your observations.[br](b) Click on "show" in the graphics window below and play the animation. Discuss the representation in the path-time diagram. The following questions may be helpful:[br]• What happens at the intersection point of the two straight lines?[br]• How can you read the distance traveled by both vehicles off the diagram?[br]• How can you read the speed of both vehicles off the diagram?[br](c) Change the speed of the car and the truck. How does the representation in the path-time diagram change? When and where will the two vehicles meet now?