Question

Lakshmanan walked 10 m towards north, then turned right and walked 25 m. Then he turned right and walked 30 m. Now he turned left and walked 10 m. Finally, he turned left and walked 20 m. How far and in which direction is he from the starting point?

• A. 30m North
• B. 35m East
• C. 40m North
• D. 50m East

Answer 1

The Correct Option is B

Start from the origin.
- Walk 10 m north.
- Turn right (facing east) and walk 25 m.
- Turn right again (facing south) and walk 30 m.
- Turn left (facing east) and walk 10 m.
- Turn left again (facing north) and walk 20 m.

Calculate the final position:
- North-South direction: \( 10 - 30 + 20 = 0 \) m (no net movement north or south).
- East-West direction: \( 25 + 10 = 35 \) m east.

Thus, he is 35 m east of the starting point.
For movement problems, track the net displacement in both directions separately and combine them.