Teaching Physics with the Physics Suite

Edward F. Redish

Home | Action Research Kit| Sample Problems | Resources | Product Information

Problems Sorted by Type | Problems Sorted by Subject | Problems Sorted by Chapter in UP

Why bother with N2?

Newton's second law written in equation form states

.

Your roommate says “That's silly. Everyone knows it takes a force to keep something going at a constant velocity, even when there's no acceleration.” Do you agree with your roommate? If so, explain why physics classes bother to teach the law. If you disagree, how would you try to convince your roommate of the error of his/her ways?


Not finding what you wanted? Check the Site Map for more information.

Page last modified October 11, 2002: D17