A man drives 3 km north, then 2 km west, then 1 km south. What is the shortest distance from the starting point?
Q1. A man drives 3 km north, then 2 km west, then 1 km south. What is the shortest distance from the starting point?
Answer: √(2² + 2²) km
Explanation: Net displacement north is 3 - 1 = 2 km, and west is 2 km, so use Pythagoras' theorem: √(2² + 2²).