A man walks 8km towards the North, then 4km towards the East. What is his net displacement?
Q1. A man walks 8km towards the North, then 4km towards the East. What is his net displacement?
Answer: √(8² + 4²) km
Explanation: Use Pythagoras' theorem to find the net displacement: √(8² + 4²) = √(64 + 16) = √80 km.