A) 1200 m
B) 1300 m
C) 1400 m
D) 1500 m
Correct Answer: A
Solution :
An aeroplane flies 400 m north and 300 m south so the net displacement is 100 m towards north. Then it flies 1200 m upward so \[r=\sqrt{{{(100)}^{2}}+{{(1200)}^{2}}}\] \[=1204\,m\tilde{-}1200\,m\] The option should be 1204 m, because this value mislead one into thinking that net displacement is in upward direction only.
You need to login to perform this action.
You will be redirected in
3 sec
