Which scenario requires more energy to lift an object suspended on a pulley?

Lifting an object suspended on a pulley that is fixed in place requires a specific amount of energy, which is determined by the weight of the object and the height it needs to be lifted. In this scenario, since the object is fixed, the energy required to lift it is solely associated with overcoming the gravitational force acting on it.

When an object is attached to a spring, the situation is different. The energy needed to lift the object can vary depending on how much the spring is either compressed or stretched. If the spring is tightly coiled, it may require less energy to lift the object slightly, owing to the spring's potential energy contributing to the lifting process.

The condition where an object is fixed means that you must apply energy to lift it directly while counteracting gravitational force without other variables affecting the outcome. Thus, this scenario directly correlates with the mechanics of lifting, focusing purely on gravitational force, therefore requiring the maximum consistent energy input relative to its weight and the height lifted.

Furthermore, the option indicating that the energy required depends on the height implies a variable that is not universally applicable to scenarios where the object is fixed. The height does indeed play a role, but it is the fixed nature of the object that solidifies the