This is a snapshot of an application that simulates 2D rigidy body dynamics. The application simulates the phyisics of gravitational forces, spring forces, resting forces, impulse forces, and torques acting upon rigid bodies (rectangles). Three rectangles are shown on screen. One is dangling above the others from a spring (in green) affixed to one of its vertices. The other end of the spring is affixed to the mouse cursor (which the image grabber did not capture). The application uses the Adaptive Runge-Kutta numerical integration technique to integrate accelerations to velocities and velocities to positions.
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