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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



Question ID - 51213 | SaraNextGen Top Answer

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

1 Answer
127 votes
Answer Key / Explanation : (d) -

Mgh=

For ring =

For cylinder h2=  

For sphere

2 :

20 : 15 : 14

127 votes


127