question_answer

     Two bodies of masses 3 kg and 12 kg are placed at a distance 12 m. A third body of mass 0.5 kg is to be placed at such a point that the force acting on this body is zero. Find the position of that point.

Answer:

                  Given  Let the mass,  = 0.5 kg be placed at a distance of x m from  as shown in figure. Then force acting on  due to  is equal and opposite to the force acting on  due to .                                                           (1)                                                      (1) The position of required point is at a distance 4 m from mass of 3 kg.                            (1)