Question

4. A person moves 30 m North and then 20 m towards East and
finally 30,2 m in South-West direction. The displacement of
the person from the origin will be
(a) 10 m along North
(b) 10 m long South
(c) 10 m along West
(d) Zero​

Answer 1

Explanation:

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