Mass m1 = 1.2 kg moves with constant velocity v1i = 2.6 m/s along the x-axis and collides with mass m2 = 2.7 kg, which moves with velocity v2i = 4.5 m/s, as sketched below. after the collision, m1 and m2 stick together. find the angle, θ, between the x-axis and the direction of motion of the two masses after the collision. (answer in degrees.) θ =