Question with Solution

In figure (a) and (b) shown the mass M is very large and exerts a gravitational force on ${\mathrm{m}}_1$ and ${\mathrm{m}}_2$. Gravitational force between ${\mathrm{m}}_1$ and ${\mathrm{m}}_2$ is very small as compared to that of M. Net force ${\overrightarrow{\mathrm{F}}}_{\text{net }}$ on ${\mathrm{m}}_1$ in accelerating reference frame of ${\mathrm{m}}_2$ is called tidal force. If ${\mathrm{m}}_1$ is to be at rest in reference frame of ${\mathrm{m}}_2$ an additional force equal to tidal force is to be applied on ${\mathrm{m}}_1$. Mark the correct statement(s) using appropriate approximation :