A man walks 9 km south, then 4 km east, then 9 km north. What is his final position relative to the starting point?
Q1. A man walks 9 km south, then 4 km east, then 9 km north. What is his final position relative to the starting point?
Answer: 4 km East
Explanation: 9 km south and 9 km north cancel out; he is 4 km east.