Question

A person moves 30root3 meter towards north and 20m towards east and finally 10root3 meters towards south.Tge magnitude of displacement of the person from the origin is

Answer 1

Answer:

30m North

20m East

and the 30

2

SW can be rewritten as 30m in south and 30m in West

because south and west being at 90

0

result

in

30

2

+30

2

=30

2

so at last we have following data that in south X

S

=30m+north=30m+(−30m)=0,

negative becasue north is opposite to south.

and in West we have X

W

=30m+east=30m+(−20m)=10m

so the displacement is 10m due west

Answer 2

30m North
20m East
and the 30
2
​
SW can be rewritten as 30m in south and 30m in West
because south and west being at 90
0
result
in
30
2
+30
2

​
=30
2
​

so at last we have following data that in south X
S
​
=30m+north=30m+(−30m)=0,
negative becasue north is opposite to south.
and in West we have X
W
​
=30m+east=30m+(−20m)=10m
so the displacement is 10m due west