Question

Tom moves 3 m towards North, then 4 m towards East and finally 6 m towards South. What is his net displacement?

• A. 5 m in the South-East direction
• B. 5 m in the South-West direction
• C. 3 m in the South direction
• D. 6 m in the South direction

Answer 1

The correct option is A 5 m in the South-East direction


Tom starts from A and finally reaches B.
Displacement is the shortest distance between the initial and final position, i.e., AB
Using pythagoras theorem,
$AB=\sqrt{(AC{)}^2+(BC{)}^2}$
$AB=5m$.
Hence, displacement of Tom is 5 m in the South-East direction.