Question 9
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The figure below shows the arm of an excavator, which is controlled by three hydraulic cylinders. If the soil in the scoop weighs 415 kg, with the centre of gravity at G. Calculate the magnitude of the force (in kN) applied by the cylinder AB to the arm BC.
Dimensions in mm
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Question 10
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Calculate the pin reactions at E in kN.
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Question 11
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Calculate the pin reactions at F in kN.
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Question 12
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Calculate the magnitude of the force (kN) in the intermediate cylinder if the cylinder is Oriented at 15° to the horizontal and the horizontal distance between C and its point of attachment on member CB is 600 mm.
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