TS EAMCET 04 May 2019 Shift 2 Solved Paper

An iron rod of length 1.5 m lying on a horizontal table is pulled up from one end along a vertical line so as to move it with a constant velocity 3 m/s, while the other end of the rod slides along the floor. After how much tune the speed of the end sliding on the floor equals to the speed of the end being pulled up.