Wheel II -- Help
The graphing window displays a circle of radius a in green, its center in purple, a radial line segment of length b in cyan, and a point (a "light") at the end of that radial line segment in yellow.
Set the wheel radius a and the radial setting b of the light using sliders at the bottom.
the rolling wheel using the [>>] key, or control its position
by grabbing the theta slider, by using the [<], [>] keys, or by
dragging the cursor over the graphing window with the mouse button depressed.
Click [reset] to reset θ to zero.
Select the toggle [trace] to cause the light to leave a yellow trace and of the center of the wheel to leave a purple trace.
Select the toggle [velocity vector] to display the velocity vector in red.
Roll the cursor over the graphing window to create crosshairs and a readout of the cursor position.
c 2001 H. Hohn