A massless spool of inner radius r and outer radius R is

Last updated: 6/20/2023

A massless spool of inner radius r and outer radius R is placed against a vertical wall and tilted split floor as shown A light inextensible thread is tightly wound around the spool through which a mass m is hanging There exists no friction at point of contact with tilted floor but it is u with wall The angle between the two surfaces is 0 A Magnitude of force on spool with wall to maintain equilibrium is mg cot 0 R B Magnitude of force on spool from wall to maintain equilibrium is mg 1 cote cot 0 C Minimum value of u to maintain equilibrium is R r tane D Minimum value of u to maintain equilibrium is R M m 0