Question

Which pair of the following forces will never give resultant force of 2 N

• A. 2 N and 2 N
• B. 1 N and 1 N
• C. 1 N and 3 N
• D. 1 N and 4 N

Answer 1

The correct option is D 1 N and 4 N

If two vectors A and B are given then Range of their resultant can be written as $(A-B)\le R\le (A+B).$
i.e.$R_{max}=A+B$ and $R_{min}=A-B$
If B = 1 and A = 4 then their resultant will lies in between 3N and 5N. It can never be 2N.