Final answer:
The question deals with the use of a pulley system to lift objects, directly relating to physics concepts of work, power, and mechanical advantage.
Step-by-step explanation:
The question pertains to a scenario where Tanner uses a pulley system to lift heavy boxes in a warehouse, highlighting a proportional relationship between the crank turns and the height the box is lifted. The principle in focus here is the mechanical advantage of pulleys, and the understanding of work and power in a physics context. A key concept is that work done is equivalent to the energy transferred, with work calculated as the product of force and distance (W=fd), and power is the rate at which work is done (P=W/t). The efficiency of the pulley system can be related to the amount of rope pulled to lift the load a certain height, where a greater number of supporting ropes (Ideal Mechanical Advantage - IMA) can reduce the force needed to lift a weight, but requires pulling a longer length of rope.
For example, lifting a 20 kg box a vertical distance of 2 m involves gravitational potential energy, calculated as mgh, where 'm' is mass, 'g' is the acceleration due to gravity, and 'h' is the height. The same concept of energy transfer is applicable in various contexts, such as a crane lifting construction materials, and is always influenced by whether friction is considered.