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Two identical disks, roll without slidin...

Two identical disks, roll without sliding across a horizontal floor with the same speed and then up inclines. Disk A rolls up its incline without sliding. On the other hand, disk B rolls up a frictionless incline. Otherwise the inclines are identical. Disk A reaches a height 12 cm above the floor before rolling down again. Disk B reaches a height above the floor of :

A

24 cm

B

18 cm

C

12 cm

D

8cm

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Verified by Experts

The correct Answer is:
D
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