Page 29 - Force 10

Details on “G”

Universal Gravitational Constant

We have ,

From Newton’s universal law of gravitation, The force of gravitation

between two bodies of masses M and M at a separation of ‘d’ from
1
2
2 × 2
1
1
their centers is F= … … … … … . (i)G ( ) ,
2 2

When M =M = 1 Kg and d=1m as in figure below
2
1

Then, equation i) becomes,

1KG 1KG ×1×1
F=

1 2

=1m ∴ F = G