Problem: A coordinate system (in meters) is constructed on the surface of a pool table, and three objects are placed on the table as follows: a 10.0-kg object at the origin of the coordinate system, a 16.0-kg object at (0, 2.0), and a 18.0-kg object at (4.0, 0).
Part A: Find the resultant gravitational force exerted by the other two objects on the object at the origin.
I need help to find the resultant gravitational force exerted by the other two objects on the object at the origin.