Work - Trabalho cosseno - Seno
These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video. More free lessons at: http://www.khanacademy.org/video?v=30o4omX5qfo In this video David Santo Pietro talks about what work means and how to calculate the work done by a force. He also explains what the Work Energy principle means and how it can be derived.
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