Agirl throws a rock straight down from a bridge at 15 meters per second. how fast is the rock going after four seconds?
clean it up hope it's right have a good day
the carpet is more likely to accumulate excess electric charge (static electricity) over time when there is no good way for it discharge. the dry air, as was said, insulates the carpet and makes it prone to such accumulation. this is less the case with humid air that allows the carpet to continuously discharge a portion of its electric charge over time and thus spares us--the walkers--a minor shock.
200 joules of work energy are involved. that's all we need to know to answer the question. once we know that 200 joules of work energy are involved, we don't care what was lifted, or how far, or how long it took, or how many people worked on it, or how much they were paid, or what was the distribution of their gender identities, or the ethnic diversity among the team. or what day each of them celebrates as their sabbath. any other information besides the 200 joules is only there to distract us, and see whether we're paying attention.
power = (work or energy) / (time to do the work or move the energy)
power = (200 joules) / (5 seconds)
power = 40 watts
work is a product of force and displacement. the choice with displacement but in a different direction is not right as force not acting along the displacement will not generate work.
so the answer is force in the same direction as the displacement vector and the motion.