A uniform rod of mass `m` and length `l` is in equilibrium under the action of constraint forces, gravity and tension in the string. Find the

a. frictional force acting on the rod.
b. tension in the string.
c. normal reaction on the rod.
Now, the string is cut. Find the
d. angular acceleratiion of the rod just after the string is cut.
e. normal reaction on the rod just after the string is cut.