Newtonium - Physics Simulator!

Newtonium is a powerful tool to solve physics problems. For those of you, who are having difficulties understanding and solving classical mechanics problems, this app is a huge help. Features:- create, load and save your models- change gravitation, friction, resistance or behavior during collisions- specify real world physical properties of all objects- use tools like springs, struts, and pulleys- units are converted automatically- set initial and final conditions- forces and velocities are displayed as arrows for each object- forces are described in detail- use the simulator to animate your model- display diagrams for objects in motion- verify conservation of energy or momentum