Question

Two forces, one of 10 N, another of 15 N, act on an object. What is the range of possibilities for the magnitude of the resultant?

Answer 1

We can consider that two forces can apply to the same direction and opposite direction respectively.
If they are applying in same direction, then 25 N is the max force while in the opposite case, 5N is the min force.

Therefore, anything between them is our resultant force.
Range would be [5,15]

Answer 2

Do you mean [5,25], should I include angles? And thx ;)

Answer 3

Or you can say it as 6<Force<26

Answer 4

We're not including angles here !