Two girls, each of weight 400 \(N\) climb up a rope through a height of 8 \(m\). We name one of the girls A and the other B. Girl A takes 31 \(s\) while B takes 41 \(s\) to accomplish this task. What is the power expended by each girl?
Answer:
Power expended by girl A \(=\) \(W\)
Power expended by girl B \(=\) \(W\)