A person travels 12 km north, then 5 km east, and finally 3 km south. What is the distance from the starting point?
Q1. A person travels 12 km north, then 5 km east, and finally 3 km south. What is the distance from the starting point?
Answer: √(9² + 5²) km
Explanation: Calculate the net displacement using Pythagoras theorem. The person is 9 km north and 5 km east, so distance = √(9² + 5²).