Physics - Circular Motion Question with Solution | TestHub

$B$moves in a circle (shown by the dashed curve) of radius$I$with uniform speed.



Massless rod$1$can exert force$T_1$on$\mathrm{B}$only along its length i.e. towards the centre of the circular path. Hence$T_1$contributes only to centripetal acceleration of$\mathrm{B}$.

The tension in rod$2$, that is,$T_2$can contribute to both tangential and centripetal acceleration of$\mathrm{B}$. As the angular speed is uniform so tangential acceleration of$B$is zero. Hence$T_2=0$

The tension in rod connecting mass$\mathrm{B}$and$\mathrm{C}$is zero.