MCQ
A roller is mad e by joining together two cones at their vertices $O$. It is kept on two rails $AB$ and $CD$, which are placed asymmetrically (see figure) , with its axis perpendicular to $CD $ and its centre $O$ at the centre ofline joining $AB$ and $CD$ (see figure) . It is given a light push so that it $A$ starts rolling with its centre $O$ moving parallel to $CD$ in the direction shown. As it moves, the roller will tend to
- Ago straight
- Btum left and right alternately
- ✓turn left
- Dturn right
