The following bodies are made to roll up (without slipping) the same inclined plane from a horizontal plane: (i) a ring of radius R, (ii) a solid cylinder of radius and (iii) a solid sphere of radius . If, in each case, the speed of the center of mass at the bottom of the incline is same, the ratio of the maximum heights they climb is : |
|||
(a) |
14 : 15 : 20 |
(b) |
10 : 15 : 7 |
(c) |
4 : 3 : 2 |
(d) |
20 : 15 : 14 |
The following bodies are made to roll up (without slipping) the same inclined plane from a horizontal plane: (i) a ring of radius R, (ii) a solid cylinder of radius and (iii) a solid sphere of radius . If, in each case, the speed of the center of mass at the bottom of the incline is same, the ratio of the maximum heights they climb is : |
|||
(a) |
14 : 15 : 20 |
(b) |
10 : 15 : 7 |
(c) |
4 : 3 : 2 |
(d) |
20 : 15 : 14 |
Mgh=
For ring =
For cylinder h2=
For sphere
2 :
20 : 15 : 14