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(Solved): The uniform \( 124-\mathrm{kg} \) beam is freely hinged about its upper end \( A \) and is initial ...



The uniform \( 124-\mathrm{kg} \) beam is freely hinged about its upper end \( A \) and is initially at rest in the vertical

The uniform \( 124-\mathrm{kg} \) beam is freely hinged about its upper end \( A \) and is initially at rest in the vertical position with \( \theta=0 \). Determine the initial angular acceleration \( \alpha \) (positive if counterclockwise, negative if clockwise) of the beam and the magnitude \( F_{A} \) of the force supported by the pin at \( A \) due to the application of a force \( P=542 \mathrm{~N} \) on the attached cable. Answers: \( \alpha= \) \( \operatorname{rad} / \mathrm{s}^{2} \) \( F_{A}= \) \( \mathrm{N} \)


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given data m = 124 kg tan x= AC/AB = 4.5/4.5 = 1 x = 450 ABCAxAy
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