A girl walks 3 km south, then 4 km west, then 3 km north. What is her final direction relative to the starting point?
Q1. A girl walks 3 km south, then 4 km west, then 3 km north. What is her final direction relative to the starting point?
Answer: West
Explanation: The girl's net southward movement = 3 - 3 = 0 km, and westward = 4 km. So, she is west, using vector addition.