A roller is made by joining together two cones at.their vertices Itis kept on two rails AB and CD
A roller is made by joining together two cones at.their vertices It is kept on two rails AB and CD which arc pla ced asymmetrically (see figure), with its axis perpendicular to CD and its centre 0 at the centre of line joining AB and CD. It is given a light push so that it starts rolling with its centre 0 moving parallel to CD in the direction shown. As it moves, the roller will tend to :
- turn left
- turn right
- go straight.
- turn left and right alterna tely.