The current issue of Outside magazine has a story on Jesse Williams, a US high-jumper who is one of the favorites in the upcoming London Olympics. Shorter than most of his competition, Williams is able to make up for his lack of height with some great training and helpful physics. I contributed physics ideas to the story. Click here for the story.
Note that the liftoff force I give at the end of the article is an estimate of the average force, not the maximum instantaneous force.
I'll be rooting for Jesse Williams to take home the gold!