The path of a pole vaulter is measured using video analysis. The y vs. x graph (which shows the path) of the pole vaulter is shown below.
The path of a pole vaulter.
The mass of the vaulter is 70.0 kg. He plants the pole when he is at the location , and the pole starts to bend. With the pole mostly bent, the vaulter starts his mostly upward trajectory at the location . The average force by the pole on the pole vaulter during this interval is . What is the total work done on the pole vaulter during this interval? State any assumptions that you make.