Masses 8 kg and 2 kg are 18 cm apart. The point where the gravitational field due to the masses is zero is

Options

A. 0.12 m from 8 kg mass
B. 0.06 m from 8 kg mass
C. 0.018 m from 8 kg mass
D. 0.09 from 8 kg mass of 2 kg mass

Answer

a

Explanation

`(M)/(m)=((x)/(r-x))^(2)`
`(8)/(2)=((x)/(18-x))^(2)`
`2=(x)/(18-x)`
`36-2x=x`
`36=3x`
`12=x" "therefore" 0.12 m from 8 kg mass."`