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JEE Advanced 2015 Paper 1

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Question : 5

Total: 60

Two identical uniform discs roll without slipping on two different surfaces AB and CD (see figure) starting at A and C with linear speeds V1‌and‌V2 respectively ,and always remain in contact with surface.If they reach B and D with the same linear speed and V1=3 m/s,then V−2‌in‌

7 m/s
5 m/s
2 m/s
6 m/s

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