The bar ab performs a plane motion in vertical plane so that the extremity a describe with constant velocity va = vo = 0,5 m/s the horizontal, fixed straight line, and it resting in the fixed point c. calculate and represent the velocity and acceleration of the point b, the minimum velocity on the rod ab at the instant t1 = 1s from the start of the motion and represent the distribution of velocities on the rod at the same instant. it is known that in the initial instant the rod is in rest in vertical position and has the length lab = 1,5m.