1 Two brackets, A and B, support a shelf of length 1.2 m. Bracket A is...

 

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1 Two brackets, A and B, support a shelf of length 1.2 m. Bracket A is positioned 0.15m from the left-hand end of the shelf. A book is placed 0.35 m from the left-hand end of the shelf as shown. A 0.15 m 0.35m B (a) The normal contact forces of each bracket on the shelf are equal. Determine the distance of bracket B from the left-hand end of the shelf. weight of book = 8.5 N weight of shelf = 14N (b) Bracket B is moved closer to the left-hand end of the shelf. (5) (2) Explain the effect on the magnitude of the normal contact force of bracket B on the shelf. 1 Two brackets, A and B, support a shelf of length 1.2 m. Bracket A is positioned 0.15m from the left-hand end of the shelf. A book is placed 0.35 m from the left-hand end of the shelf as shown. A 0.15 m 0.35m B (a) The normal contact forces of each bracket on the shelf are equal. Determine the distance of bracket B from the left-hand end of the shelf. weight of book = 8.5 N weight of shelf = 14N (b) Bracket B is moved closer to the left-hand end of the shelf. (5) (2) Explain the effect on the magnitude of the normal contact force of bracket B on the shelf.

Answer rating: 100% (QA)

Part a Determining the Distance of Bracket B Total Weight We are given the weight of the book 85 N and the weight of the shelf 14 N Add these weights ... View the full answer