Question

Gravitational force between a point mass m and M separated by a distance is F.Now, if a point mass 2m is placed next to m in contact with it, The force on M due to m and the total force on M are

• A. 2F , F
• B. F , 2F
• C. F , 3F
• D. F , F

Answer 1

The correct option is B F , 2F

Gravitational force will remain same on mass $M$ and gets no effect by the presence of any mass. Hence, the force on $M$ due to $m$ is $F$.

$\therefore$Total force$=F+2F=3F$

The force are $F$ and $2F$.