Solution of task 15.4.8 from the collection of Kepe OE

Solution of task 15.4.8 from the collection of Kepe OE

15.4.8
A homogeneous rod AB with a length of 2 m and a mass m = 6 kg slides at the ends A and B along the horizontal and vertical planes. Determine the kinetic energy of the rod at the time when the angle? = 45 ° and the velocity of point A is vA = 1 m / s. (Answer 2)