Mech:Error log

Did you find something that looks like an error (or possible error) to you? Report the error quickly here (anonymous, does not require login, but you can optionally provide an email ID to be notified of the fix).

We have just started logging errors. On this page, you will find information about all errors that persisted on the site for more than one month on any page. Note: This applies only to errors that were not fixed by December 18, 2011. Errors fixed before then are not being logged on this page.

Page	Error description	Version where it was introduced	Version where it was corrected	Why error? Why not caught? ("I" refers to Vipul)
pulley system on a double inclined plane	Had $\theta$ in place of $\alpha_1, \alpha_2$		April 19, 2012	didn't read page carefully after editing
sliding motion along an inclined plane	did not have square root on the formula for "speed at instant of return" in the "Given an initial speed upward" kinematics section	June 27, 2010	January 15, 2012	not intuitively clear enough