The A-frame is being hoisted into an upright position by the vertical force of F = 80
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The A-frame is being hoisted into an upright position by the vertical force of F = 80 lb. Determine the moment of this force about the x axis when the frame is in the positionshown.
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15 6 t 30 ft
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Using x y z u cos 30 i sin 30 J FAC 6 cos 15 1 3 J 6 sin 15 k F 80 k COS ...View the full answer
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