Question

Calculate the force of gravitation between two objects of masses 50 kg and 120 kg respectively kept at a distance of 10 m from one another

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Answer 1

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

Answer 2

In order to calculate the gravitational force between two objects with masses of m1 and m2 , the equation is: where G is the gravitational constant (6.67E-11 m3 s-2 kg-1), r is the distance between the two objects, and F is the magnitude of the force between the objects.