1. A hiker is plotting his course on a map with a scale of 1.00 cm = 3.00 km. If the hiker walks 2.50 cm north, then turns south and walks 1.50 cm, what is the actual displacement of the hiker in km?
2. A hiker is plotting his course on a map with a scale of 1.00 cm = 3.00 km. If the hiker walks 1.50 cm north, then turns south and walks 2.50 cm, what is the actual displacement of the hiker in km?