Question

A person moves 30 m north, then 20 m east then
30 v2 m south-west . His displacement from the
original position -
option:-
(A) 14 m south-west (B) 28 m south
(C) 10 m west" (D) 15 m East​

Answer 1

Explanation:

10 m towards west.....

Answer 2

Answer:

Answer:  10 m

See the diagram.

Person starts at A, travels north to B  and the moves to East till C and finally moves along CD in the South West direction.

The movement in the direction CD of length 30√2 m   is equal to a movement of 30 m East and then  30 meters South.   This is easy to show using Pythagoras theorem.

So the displacement of the person is AD , which is 10 meters in the West direction from the point of start.