question_answer

A uniform disc of radius 'R? is rotating about vertical axis /passing through the centre in horizontal plane with constant angular speed. A massless pole AB is fixed on its circumference as shown in the figure. A light string of length 2R is tied at A and a small bob at its other end. In equilibrium string makes an angle \[37{}^\circ \] with vertical. What is the angular speed (in rad/sec) of disc? (Take \[R=\frac{3}{11}m,\,\,g=10m/{{s}^{2}}\])

Answer:

3.53