Saved Bookmarks
| 1. |
A uniform sphere is place on a smooth horizontal surface and as horizontal force F is appied on it at a distance h above the surface. The acceleratioin of the centreA. is maximum at h = 0B. is maximum when h = RC. is maximum when h = 2RD. is independent of h. |
|
Answer» Correct Answer - A We have `(1)/(2)mv^(2)=mg(4-2)=2mg` `v=sqrt(4g)=2sqrt(g)` Now vertical component at `R = v sin 30^(@)=2sqrt(g).(1)/(2)=sqrt(g)` |
|