Question 7 (2 points) D B A uniform thin shelf AB of length 2m and weight 100N is hinged to the wall at a and is support
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Question 7 (2 points) D B A uniform thin shelf AB of length 2m and weight 100N is hinged to the wall at a and is support
Question 7 (2 points) D B A uniform thin shelf AB of length 2m and weight 100N is hinged to the wall at a and is supported by a chain CD. Ad = 0.7m and ZADC = 50°. The tension in the chain is
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