Problem 4: Statics 25 points rlght rope floor trestle A thin board of given length L and given mass M is suspended at rest on two ideal ropes and an ideal trestle as shown above. The board is tipped relative to the horizontal by a given angle 3 as shown. The left rope is attached to the board at a given angle ,8 relative to the vertical as shown. The right rope is horizontal. The trestle applies only a vertical force to the board at the point just (barely) onto the right end of the board. There is no friction anywhere. Determine the magnitude of each and every individual force applied to the board. Be sure to draw an entire and properly labeled Free-Body-Diagram (FED) and also a complete and properly labeled Extended-Free-Body-Diagram (XFBD) for the board. Express your answer in terms of the given parameters only. Explain your answer. Important: you must explain and justify any physics concepts that you are using here. Possibly Useful Hint: Note the following geometric fact regarding the angle labeled with an asterisk ("*" ) as shown above: *=90(9+,6)

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