Saved Bookmarks
| 1. |
In a ring ABCD of radius r, the lower half ABC has mass m and the upper half ADC has mass 2m. In both parts, the masses are distributed evenly. The ring is initially at rest on a horizontal surface, as shown. O is the centre of the ring. The ring is now pushed very slightly and begins to roll on the horizontal surface without slipping. When it has made half a rotation, i.e., B is vertically above D, its angualar velocity omega will be given by (where beta = g//pir) |
|
Answer» `OMEGA^(2) = 3beta//2` |
|