Question 1
A person walks 19 m West, then 21 m East, then 15 m South. Find his displacement from the starting point.
Step-by-step:
1. Track net displacement:
- North-South: -15 m South
- East-West: 2 m East
2. Displacement = √(2² + -15²) = √229 = 15 m
3. Total distance walked = 55 m
1. Track net displacement:
- North-South: -15 m South
- East-West: 2 m East
2. Displacement = √(2² + -15²) = √229 = 15 m
3. Total distance walked = 55 m