Question

calculate the force of gravitation between two objects of masses 50 kg and 120 kg respectively, kept at a distance 10m from each other.

Answer 1

Force of gravitation between objects is 4.0038 X 10^-9

Answer 2

The gravitational force of attraction between two objects of masses m1 and m2 separated by a distance r is given by  

F = Gm1m2/r2,  

where G is the universal gravitational constant. G = 6.67x10-11 N m2/kg2.

The gravitational force of attraction between two objects of masses 50 kg and 120 kg kept at distance of 10 m from each other is

F = 6.67x10-11 N m2/kg2. 50 kg x 120 kg /(10 m x 10 m)

   = 400.2 x 10-11 N

  = 4.002 x 10-9 N