Física - Trabalho e energia - Work

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=udgMh3Y-dTk In this video, David Santo Pietro explains how to calculate the work done for a few sample problems. It is also shown how the work energy principle applies in these scenarios.