Two events occur in an inertial system k as follows. event 1: x1 = a, t1 = 2a/c, y1 = 0,z1 = 0event 2: x2 = 2.6a, t2 = 1.5a/c, y2 = 0,z2 = 0what is the velocity of the frame k' in which these events appear to occur at the same time? express the velocity vector using the variables a and c and the unit vectors, i, j, and k; for example, 2i + 2j is a vector which bisects the x and y axes.