Physics - Circular Motion Question with Solution | TestHub

A circular platform rotates around a vertical axis with angular velocity $\omega =10\mathrm{rad}/\mathrm{s}$. On the platform is a ball of mass 1 kg , attached to the long axis of the platform by a thin rod of length $10\mathrm{cm}\left(\alpha =30^{\circ }\right)$. Find normal force exerted by the ball on the platform (in newton). Friction is absent.