Answer:
The correct answer is added the new force F3 in the same direction than F2.
Explanation:
First I had to look for the problem to know the forces. In this situation, the forces are in the vertical axis acting on an object, in the same direction, and opposite directions. F1 is up and F2 is down.
To construct the vector F3 to cancel the resulting force allowing the object to rest, we must measure the difference in length between F1 and F2. In this way, we will have the F3 module. The direction of this force will be the smaller of the other two.
If F2<F1, then F3 will be in the same direction as F2.
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