An athlete's foot is in contact with a kicked football for 100 milliseconds and exerts a force on the football over a distance of 20 centimeters. The force starts at 0 N and increases linearly to 2000 N for 50 milliseconds through a distance of 10 centimeters and then decreases linearly for 50 milliseconds through a distance of 10 centimeters. What is the average power of the athlete's foot while it is in contact with the ball?

The Praxis General Science: Content Knowledge (5435) exam is a test required by many states for credential candidates planning to teach science at a high school level. It is a single, computer-delivered test that includes questions from five content domains.

The content categories are Scientific Methodology, Techniques, and History; Physical Science; Life Science; Earth and Space Science; and Science, Technology, and Society.