Ladybug Revolution is a free simulation where you can join the ladybug in an exploration of rotational motion.

Rotate the merry-go-round to change its angle, or choose a constant angular velocity or angular acceleration. Explore how circular motion relates to the bug's x,y position, velocity, and acceleration using vectors or graphs.

Requirements:

· Java 1.5 or later

What's New in This Release: [ read full changelog ]

· Added control for angle units (i.e. degrees or radians) to tabs 3 and 4.
· Fixed a bug that caused errors after clearing the data, then playing back a recording
· Fixed a bug that prevented the rotation platform from being dragged after setting an angular velocity.
· Changed range of angular momentum chart from (-20,20) to (-10,10) to match angular velocity ranges.
· Increased range of angular momentum chart to make default motion visible within the chart bounds.
· Added units of kg m^2 / s for angular momentum
· Restored the angle slider on the Rotation introduction panel, was inadvertently dropped
· Changed the length scale of all objects from millimeters to meters, increasing the size of several objects (including the platform and ladybugs)
· Changed the label of chart series from "Series" to "Forces" and "Torques", respectively,
· Added a label and editable text box for applying torque in the moment of inertia tab
· Determine when the object slips off the platform as a function of the radius and velocity.
· rotation: Fixed the units on the acceleration and velocity charts to be in terms of mm instead of m.
· torque: Added a vertical slider for setting the torque in the moment-of-inertia tab.