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Is it Mass or Weight that Impacts Friction?

Is it Mass or Weight that Impacts Friction?

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Author: Jon Fishwild
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Tutorial

Source: Personal

Questions for Understanding

After viewing this tutorial you should be able to answer the following:

1. Why do the types of materials used impact the friction force?

2. What force is a measure of the embeddedness of the surface bumps?

3. Why does increasing mass increase embeddedness on horizontal surfaces?

4. Friction force is a function of what two factors?

Source: Personal