Physics (AS & A Level) · Oct / Nov 2017 · Paper 12 · Question 12

The diagram shows a solid cube with weight W and sides of length L. It is supported at rest by a frictionless spindle that passes through the centres of two opposite vertical faces. One of these faces is shaded. The spindle is now removed and replaced at a distance L/4 to the right of its original position. When viewing the shaded face, what is the torque of the couple that will now be needed to keep the cube at rest?

1. AWL/4 anticlockwise
2. BWL/4 clockwise
3. CWL/2 anticlockwise
4. DWL/2 clockwise

As printed in the paper