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Q.
Two forces of $10\, N$ and $6\, N$ act upon a body. The direction of the forces are unknown. The resultant force on the body may be
Motion in a Plane
Solution:
The resultant of two vectors always lie between $(A+B) \&(A-B)$.
So the resultant of $10\, N \& 6\, N$ should lie between $16\, N \& 4\, N$.
So answer is $15\, N$.