Level 4
Point of Balance 2
There exist n magnetic materials in a gravity-free space. The center of each magnetic material is the location, i.e., the spatial coordinate (x,y,z). Coordinates y and z of n magnetic materials are the same, and only the coordinates of x are different. In other words, it is assumed the magnetic materials exist in a straight line. The location of the magnetic materials is never changed by any external force. Now, when an object is located in a random position in the straight in which n magnetic materials exist, gravitational force acts from each magnetic material. The gravitational force acting from a magnetic material on the object is obtained by the distance (d) between the magnetic material and the object and by the masses of the magnetic material and the object.

 

Formula for calculating the gravitational force acting from a magnetic material on the object:

F = G*m1*m2/(d*d), G is a positive constant.