Four masses are positioned at the corners of a rectangle, as indicated in the figure below (not to scale).
x
1kg------2kg
| |
| |y
3kg------4kg
(a)Find the MAGNITUDE and DIRECTION of the net force acting on the 2.0 kg mass if x = 0.20 m and y = 0.11 m.
(b)How do your answers to part (a) change (if at all) if all sides of the rectangle are doubled in length?
-So far I have tried to find the components of all of the gravitational forces acting on the 2kg mass and then sum those to find the net force, but I don't seem to be getting the right answer. I do not know how to find the direction. I realize that if all sides of the rectangle are doubled in length then the force should be quadrupled because it depends on r^2, while the direction will remain unchanged.
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