Two particle of masses `4kg` and `8kg` are kept at `x=-2m` and `x=4m` respectivley. Then, the gravitational field intensity at the origin is

Options

A. G
B. 2 G
C. G/2
D. G/4

Answer

c

Explanation

`F_(1)=(Gxx4xx1)/(4)=G`
`F_(2)=(Gxx1xx8)/(16)=(G)/(4)`
`F_(R)=F_(1)-F_(2)=G-(G)/(2)=(G)/(2).`