This is an interactive Geogebra page. I use it for teaching CAIE Further Mechanics.
You can run this page in a browser by clicking here or you can download the file if you want to. Geogebra pages can easily be embedded into other web-sites, including Firefly.
You can click-and-drag the red and green spots to change the velocities of the particles immediately before the collision. The pink and blue arrows show the velocities immediately after the collision.
Sliders control the masses of the particles and the coefficient of restitution. I hope the controls are fairly self-explanatory, but get in touch with me if you have a suggestion.
You might want to set a homework task for your class, to try and discover some key ideas, for example:
- what is the significance of the Line of Action?
- what do you notice about the components of velocity perpendicular to the line of action?
- How does the applet calculate the velocities after the collision?
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