C carl New member Apr 16, 2010 #1 1. A 90kg weakling cannot do even one pull-up, By standing on a scale, he can determine how close he gets. His best effort result in a scale, reading of 23 kg. What force is he exerting? thanks!
1. A 90kg weakling cannot do even one pull-up, By standing on a scale, he can determine how close he gets. His best effort result in a scale, reading of 23 kg. What force is he exerting? thanks!
