Imagine you want to open a door at 90º. You apply a perpendicular force F1, right at the edge of the door (as far as possible of the axis of rotation) at a distance R. Then, you want to open the same door, but now you apply the force at a distance r < R (i.e. near the axis of rotation). What can you say about the new force F2 with respect to the first one, if you want to open it at the same 90º?
A. The magnitude of both forces are the same.
B. The magnitude of F1 is bigger than the magnitude of F2.
C. The magnitude of F2 is bigger than the magnitude of F1