Mechanical Engineering: Ch 13: Virtual Work Applications (8 of 39) What is Mechanical Efficiency? 1

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In this video I will explain, define, and calculate (u=0) what is mechanical efficiency, where friction equal 0.

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I really appreciate your teaching. Thank you, I looked for many videos on virtual work, until I saw yours before finally getting the concept.

mohitgaursvmg
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Fdy should be equal -F*L*sin(thetaÖ)*delta(theta) and finally in the Rdx/Fdy the minus sign factor out or I'm wrong?

tiborkemeny