Two pieces of clay, with masses m1 = 0.5 kg and m2 = 0.7 kg are moving as shown above, both with the same speed of 5.2 m/s. The angle is given by θ = 33∘. The two pieces collide and stick together. What is the speed of the combined 1.2 kg lump of clay after collision? How much kinetic energy was lost in the collision?