vertical roller following

  • A roller-coaster is released from rest at the top of the ...

    Mar 14, 2010 · A roller-coaster is released from rest at the top of the first rise and then moves freely with negligible friction. The roller coaster shown in the figure below has a circular loop of radius R in a vertical plane. Suppose first that the car barely makes it around the loop; at the top of the loop, the riders are upside down and feel weightless.