A roller is made by joining together two cones at their vertices O It is kept on two rails AB and CD which are placed

Question

A roller is made 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 of line joining AB and CD see figure It is given a light push so that it starts rolling with its centre O moving parallel to CD in the direction shown As it moves the roller will tend to 1 turn right 3 turn left and right alternately go straight 4 turn left A B D C

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