Physics - Gravitation Question with Solution | TestHub

In science fiction, there is a term called 'skyhook'. An artificial satellite has a long rod attached to it, which remains aligned along the Earth's radius, with its lower end just above the Earth's surface. The length of the rod is $\ell =4.3R$. The rod is made of a material with a uniform mass density $\lambda =1gm/m$. The angular velocity of the satellite and rod system is the same as that of the Earth and in the same sense. (Take $g=9.8m/s^2$, $R=6400km$)