Question

A man moves 20m north, then 10m east and then 20√2m south west. What is his displacement from starting point;
A. 10m North
B. 10m West
C. 10√2m South-West
D. 10√3m South-West​

Answer 1

Answer:

Explanation:

Answer 2

Answer:

30m North

20m East

and the 30  

2

​  

 So 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