8. In the diagram to the right, the mass of the 4.00 m 500. N. 12.0 m-long uniform board is 25.0 kg. a) Calculate the
8. In the diagram to the right, the mass of the 4.00 m 500. N. 12.0 m-long uniform board is 25.0 kg. a) Calculate the unknown force F, needed to balance the system. b) How much force does the fulcrum apply: 30 - vertically upward on the board? FI - horizontally? - overall? (magnitude and direction)
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