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CGP EDU Academic Team
Published on: August 14, 2026
Two identical uniform discs roll without slipping on two different surfaces AB and CD (see figure) starting at A and C with linear speeds v 1 and v 2 , respectively, and always remain in contact with the surfaces. If they reach B and D with the same linear speed and v 1 = 3 m/s, then v 2 in m/s is (g = 10 m/s 2 )
Text Solution
Verified by ExpertsThe correct answer is:
7
(7)Kinetic energy of a pure rolling disc having velocity of centre of mass 
So, 
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