Question

A man goes $20$ m towards north, then $30$ m towards east then his displacement is:

• A. $37m$
• B. $36m$
• C. $40m$
• D. $38m$

Answer 1

Answer: (B)

Resultant or magnitude of there position
$=\sqrt{(20{)}^2+(30{)}^2}$
$r=\sqrt{400+900}$
$=\sqrt{1300}=36.05m$