A man walks 3 km south, then 2 km north, then 1 km south. What is his final position relative to the starting point?
Q1. A man walks 3 km south, then 2 km north, then 1 km south. What is his final position relative to the starting point?
Answer: 2 km south
Explanation: Net displacement is -3 + 2 - 1 = -2 km, so 2 km south.