(Answered) A uniform rod of lengthnbsplnbspand weightnbspwnbspis

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A uniform rod of length L and weight W is placed on a fulcrum a distance of 0.4L from the left end. On the left end is placed a mass of weight 2Wand on the right end a vertical force F is applied to keep the system in balance. What are the magnitude and direction of the force F?

Select one

a. 7/6 W, up

b. 4/3 W, up

c. 4/3 W, down

d. 7/6 W, down

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