Kinematics Question 118
Question: A man goes 10m towards North, then 20m towards east then displacement is [KCET 1999; JIPMER 1999; AFMC 2003]
Options:
A) 22.5m
B) 25m
C) 25.5m
D) 30m
Show Answer
Answer:
Correct Answer: A
Solution:
$ \vec{r}=20\hat{i}+10\hat{j} $
$ \therefore \ $
$ r=\sqrt{20^{2}+10^{2}}=22.5 $ m
