Acceleration

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Learn more about acceleration with free physics videos, worksheets, and other online tools. We've collected the best physics resources from around the web, and they're all 100% free.
This website contains information and diagrams regarding the physical principles describing the motion of an Atwood machine. It also has a form in which you can plug in numbers and get results for tension.

This site has tutorials on various trajectory problems. It includes interactive trajectory calculators.

Explanations, formulae, and excellent illustrations covering the fundamentals of uniform circular motion and centripetal force.

This site provides a neat, concise, and lucid explanation of how to solve problems having to do with pulleys. It extends the simple explanation to include inertia; and, by extension, friction as well. Just substitute friction for inertia (Ia).