# Virtual Work

A force is being applied by a pneumatic cylinder to a lever, according tot the diagram below.

If $$a = 500\text{ mm}$$ and $$b = 500\text{ mm}$$ and, at a specific moment, and $$\phi = \frac \pi3$$ radians, then calculate the magnitude (neglect + or - sign) of the resulting torque around point C in $$\text{Nm}$$.

Details and Assumptions:

• Assume points A and C to be fixed points, distances $$a$$ and $$b$$ represent solid rods.

• Assume the force in the cylinder to be $$400\text{ N}$$.

• Assume that the construction is frictionless and weightless.

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