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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 R/2  and

(iii) a solid sphere of radius R/4. 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 - 

(1) 20 : 15 : 14  (2) 10 : 15 : 7  (3) 2 : 3 : 4  (4) 4 : 3 : 2

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Correct option   20 : 15 : 14


By energy conservation

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