P. 4299. A thin, solid uniform rod of length L is placed into a right-angled corner of a wall, and its point A at the bottom of the rod is moved at a uniform velocity of vA, such that the rod always remains in the plane which is perpendicular to the wall and the floor. How far will the bottom end of the initially vertical rod be from the wall, when the top end is disconnected from the wall? (Data: vA=3.5 m/s, L=2 m.)
Deadline expired on 10 January 2011.