question_answer

  Two objects of masses m1 and m2, when separated by a distance d, exertsa force F on each other. What happens when (a) value of mass of first is doubled? (b) masses of both objects are doubled? (c) masses are brought so closer that distance between them becomes d/2? (d) the space between the two objects has no air, i.e., it is complete vacuum?

Answer:

  We know that initial value of gravitational force between two objects,                 (a) If the mass of first object is doubled, then                                                 Hence, the force is doubled.                                                                                                                                       (1/2)                 (b) If the masses of both objects are doubled, then                                 Hence, the force is quadrapled.                                                                                                                                               (1)                 (c) If distance between the objects is reduced to onehalf of its original value, then                                 Hence, the force is quadrapled.                                                                                                                                               (1)                 (d) There is no effect on force when air medium is removed.                                                                      (1/2)