This variation on Qu121 allows an explicit solution to be calculated. Where the previous puzzle might be regarded as slightly tricky, this is straightforward in the sense that there are no unexpected tricks---it is purely a question of carefully applying methods in statics. A pulley arrangement consisting of a fixed pulley A, a fixed double ..
A window cleaner works in a light suspended cradle attached to a roof structure by a rope. Three pulley configurations A, B and C are available. Assuming the man to be strong, determine for each configuration which of the following is true when the man pulls on the free end of the rope as shown: The ..
A pulley arrangement consisting of a fixed pulley A, a fixed double pulley B, and a free pulley C is attached to two equal masses D and E as shown in the diagram. The pulleys are light and frictionless, and the ropes are light and inextensible. The pulleys are very small in comparison to their separation. The system is initially held in a position ..
I really like this question. Many people struggle with even the easy part, despite thinking they are familiar with how pulleys work. You should try the harder variant to get a more complete understanding of how to use control volume analysis. A man has one single pulley, and one double pulley composed of two wheels mounted ..