Ok. I'm talking with my girlfriend right now and her little boy is having problems with his homework. I can't figure it out and remembed this site being posted at at sitepointforums.com so I was hoping someone here could help. The homework consists of doing a crossword puzzle. She was able to help him with all of it, but one question. That question is: when you sit in a chair, it excerts-------------against you. It is supposed to be something from Newton's Second Law, and is 11 characters and the 6th character should be an L. If anyone can lend a helping hand, I would be extremely greatful and I'm sure she will be too. I hope this type of post is ok. Thank you anyone for their knowledge and help. Opps, I just saw the homework help section. Can someone move it there? sorry about that. Got so excited I finaly found a place to ask.