Mechanical Expressions

Explore Dynamics Examples

Derive the motion resulting from given applied forces.



We find the optimal length for the arm of a Trebuchet.

wheeled trebuchet

Wheeled Trebuchet

Adding wheels to a Trebuchet enhances its performance. This app lets you explore this.

modeling planetary motion

Modeling Planetary Motion

We show you how to use actuator force elements while building a model of planetary motion.