Two girls each of weigth 400N, climb up a rope through a height of 8m. We name one of the girls A and the other B. Girl A takes 20s while B takes 50s to accomplish this task. What is the power expneded by each girl.

Explanation

To solve the problem of calculating the power expended by each girl while climbing, we can follow these steps:

### Step 1: Understand the formula for power
Power is defined as the work done per unit time. The formula for power (P) is given by:
\[ P = \frac{W}{t} \]
where \( W \) is the work done and \( t \) is the time taken.

### Step 2: Calculate the work done by each girl
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