0 kg person, standing on a diving board, dives straight down into the water. Just before striking the water, her speed is 5.20 m/s. At a time of 1.

A 69.0 kg person, standing on a diving board, dives straight down into the water. Just before striking the water, her speed is 5.20 m/s. At a time of 1.65 s after she enters the water, her speed is reduced to 1.40 m/s. What is the net average force (magnitude and direction) that acts on her when she is in the water?