5. (3.5 points) A police car starts traveling south, from a position 4 km north of Lawrence, toward Police Car Lawrence at the constant speed of 2.5 km/min pursues a truck that is traveling east, from a posi- y tion 2 km east of Lawrence, away from Lawrence 150 km/h at the constant speed 3 km/min (See figure to the right). When is the distance between the Truck two vehicles minimum? ex - - > 180 km/h Lawrence