PIRA 1K10.30 Dynamic Torque: Walking the Spool
Photo shows the demonstration used at the University of Texas
at Austin.
Instructions / Notes:
- Pull strap to the left so that it is horizontal to the surface of the
table.
- Have students predict the direction the spool will turn when strap
is pulled to the right.
- Angle between strap and table determines which direction the spool
will roll.
- At some angle the spool will remain stationary.
Drawing by courtesy of the University of Minnesota.
Last Updated 7/24 - University of Texas at Austin Physics Dept.
- All Rights Reserved.
