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Test 2 - 4(Bonus 25 points A 100-lb vertical force is...

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Statics Exam #2 – Spring 09 Name______________________ 1. (33 points) Find the moment about point ‘A’ produced by the force at point ‘B’ in the following diagram.
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2. (33 points) Find a single statically equivalent vertical force about point ‘A’ that will replace all of the forces, couples, and moments in the following system. Your answer should be a vertical force as well as the distance along member AD.
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3. (33 points) Calculate the moment about point ‘O’ of the two cables AB and AC if the tension in the cables 600 lb. and 900 lb. respectively.
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Unformatted text preview: 4. (Bonus: 25 points) A 100-lb vertical force is applied to the end of a lever which is attached to a shaft at O . Determine (a) the moment of the 100-lb force about O ; (b) the magnitude of the horizontal force applied at A which creates the same moment about O ; and (c) the smallest force applied at A which creates the same moment about O . 5. (Bonus: 25 points) Determine the distance from point ‘A’ to the line of action of the resultant force when (a) a=1m, (b) a=1.5m, (c) a=2.5m...
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