Two spherical balls each of mass 1 kg are placed 1 cm apart. Find the gravitational force of attraction between them.

Explanation

`m_1 = m_2 = 1 "kg", d =1 "cm" =1 xx 10^(-2) "m"`
`F= (Gm_1 m_2)/( d^2)`
`F= (6.67 xx 10^(-11) xx 1xx1)/( (1 xx 10^(-2) )^(-2)) = 6.67 xx 10^(-7) "N"`