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Introductory Physics Homework Help
What Forces Keep the Book Stable on an Inclined Bookshelf?
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[QUOTE="vanitymdl, post: 4545412, member: 411408"] [h2]Homework Statement [/h2] A 0.407 kg book rests at an angle against one side of a bookshelf. The magnitude and direction of the total force exerted on the book by the left side of the bookshelf are given by: Force Left = 2.17 Newtons and θ=59 degrees What must the magnitude and direction of the total force exerted on the book by the bottom of the bookshelf be in order for the book to remain in this position? Force book = ___?___Newtons θ = ___?___degrees [h2]Homework Equations[/h2] [h2]The Attempt at a Solution[/h2] Sum of forces in x: 2.17sin(59) - Fcos(θ) = 0 => Fcos(θ) = 1.86 Sum of forces in y 2.17cos(59) + Fsin(θ) = 0 => Fsin(θ) = -1.1176 tan(θ) = (-1.1176)/(1.86) => θ = 211 degrees F = 2.17 N this is wrong though [/QUOTE]
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Introductory Physics Homework Help
What Forces Keep the Book Stable on an Inclined Bookshelf?
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