Question

Two disc A and B with identical mass (m) and radius (R) are initially at rest. They roll down from the top of identical inclined planes without slipping disc A has all of its mass concentrated at the rim, while Disc B has its mass uniformly distributed. At the bottom of the plane, the ratio of velocity of the center of disc A to the velocity of the center of disc B is

• A. $\sqrt{\frac{3}{4}}$
• B. $\sqrt{\frac{3}{2}}$
• C. 1
• D. $\sqrt{2}$

Answer 1

The correct option is A $\sqrt{\frac{3}{4}}$

a