Sharada starts South and moves 15 m, then turns left twice and moves 15 m each time. How far is she from the start, and in which direction?

Difficulty: Easy

Correct Answer: 15 m. East

Explanation:


Introduction / Context:
We translate each leg into axis moves and then compute the net displacement and bearing relative to the starting point.



Given Data / Assumptions:

  • Start facing South; first leg 15 m South.
  • Left from South → East, 15 m.
  • Left from East → North, 15 m.


Concept / Approach:
Use coordinates: East +x, West −x, North +y, South −y. Add vector components and interpret the result.



Step-by-Step Solution:
After 15 m South: (0, −15).After 15 m East: (15, −15).After 15 m North: (15, 0).Distance from origin = 15 m; direction = East.



Verification / Alternative check:
South and North cancel, leaving only 15 m East.



Why Other Options Are Wrong:
Any South/West options contradict the computed positive x displacement; 30 m East overstates the distance.



Common Pitfalls:
Applying left/right incorrectly (left from South is East, not West).



Final Answer:
15 m. East

More Questions from Direction Sense Test

Discussion & Comments

No comments yet. Be the first to comment!
Join Discussion