A hoop of mass M and radius R is hung from a support fixed in a wall . Its moment of inertia about the support is

A hoop of mass M and radius R is hung from a support fixed in a wall .

1.	A hoop of mass M and radius R is hung from a support fixed in a wall . Its moment of inertia about the support is
Answer» `2MR^2` `3 M R^2` `4 M R^2` `6 M R^2` Solution :A HOOP is a circular RING `therefore I_(0) = MR^(2)` By theorem of PARALLEL axes , `I = I_(0) + MR^(2) = MR^(2) + MR^(2) = 2 MR^(2)`