Question

A man walks 30m towards north ,then 20m towards east and in last 30√2m towards south-west the displacement from origin is....

Answer 1

A right angle triangle is formed by the information given in the numerical
so,
length of hypotenuse= root(30² + 20²)
net displacement vector= 10√13 - 30√2
= 42-36.6
=5.4m