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

Answer: (D)

1 N and 4 N

Answer 2

If two vectors A and B are given then Range of their resultant can be written as $(A - B) \leq R \leq (A + B)$.

i.e. $R_{\max}$ and $R_{\min}$

If B = 1 and A = 4 then their resultant will lies in between 3N and 5N. It can never be 2N.