Virtual work in a pulley system

Thread starter new90
Start date Apr 3, 2020
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Pulley Pulley system System Virtual Virtual work Work

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new90

Thread starter
Apr 3, 2020

Homework Statement: The system is in static equilibrium.Use the principle of virtual to find the weights of A and B.Neglect the weight of the strings and the friction of the pulley

Relevant Equations: no equation

If 1kg make a displacement of 1unit upward then A make a 1/2unit down because 1/sin 30.after that i have no idea what do I will really need help.
Thanks!