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http://weelookang.blogspot.com/2014/04/ejss-static-and-kinetic-friction-on.html

http://weelookang.blogspot.com/2014/04/ejss-static-and-kinetic-friction-on.html

picture from

iron

http://upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Iron_disulfide_pyrite.jpg/320px-Iron_disulfide_pyrite.jpg

rubber

http://upload.wikimedia.org/wikipedia/commons/thumb/9/91/Rubber_bands_-_Colors_-_Studio_photo_2011.jpg/320px-Rubber_bands_-_Colors_-_Studio_photo_2011.jpg

glass

http://upload.wikimedia.org/wikipedia/commons/thumb/6/67/Broken_glass.jpg/320px-Broken_glass.jpg

wood

http://upload.wikimedia.org/wikipedia/commons/thumb/b/b4/Iroko_wood.jpg/320px-Iroko_wood.jpg

 

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Credits

This email address is being protected from spambots. You need JavaScript enabled to view it.; Francisco Esquembre

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https://iwant2study.org/lookangejss/02_newtonianmechanics_7energyworkpower/ejss_model_frictionprimaryenergy/

https://weelookang.blogspot.com/2020/02/httpsiwant2study.html

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