A thin circular wire of radius rotates about its vertical diameter with angular frequency
PHYSICS · Subjective · CBSE · Physics · Laws of Motion · Laws of Motion
Problem
A thin circular wire of radius r rotates about its vertical diameter with angular frequency ω. Show that a small bead on the wire remains at its lowest point for ω≤g/r. What angle does the radius vector joining the centre to the bead make with the vertically downward direction for ω=2g/r? Neglect friction.