The ceiling in your new bedroom is slanted. Still, you want to attach a wooden shelf to it. In your plan, the 70.0 cm, uniform, 50.0 N shelf is supported horizontally by two vertical wires attached to the sloping ceiling A shelf is supported horizontally by two vertical wires attached to the inclined ceiling. The left wire is 25.0 centimeters long and it is attached to the left edge of the shelf. The right wire is 75.0 centimeters long and it is attached to a point on the shelf 20.0 centimeters to the left of its right edge. A tool is placed on the shelf midway between the points where the wires are attached to it. Installing the shelf, you forget a very small 20.0 N tool midway between the points where the wires are attached to it.