A) \[2\text{ }cm,7\text{ }cm\]
B) \[1\text{ }cm,4\text{ }cm\]
C) \[2\text{ }cm,3\text{ }cm~\]
D) \[2\text{ }cm,4\text{ }cm\]
Correct Answer: A
Solution :
If two vectors A and B are given the range of their resultant can be written as \[(A-B)\le (A+B)\] ie, \[{{R}_{\max }}=A+B\]and \[{{R}_{\min }}=A-B\] If \[B=7\]and \[A=2,\]then their resultant will be in between 5 and 9. So, \[3\text{ }cm\]cannot be the resultant of the pair.
You need to login to perform this action.
You will be redirected in
3 sec
