A girl walks 2 km north, then 5 km south, then 3 km north. What is her final displacement?
Q1. A girl walks 2 km north, then 5 km south, then 3 km north. What is her final displacement?
Answer: 0 km (2)
Explanation: Total northward = 2 + 3 = 5 km, southward = 5 km. Net displacement = 5 - 5 = 0 km.