5) A space craft of mass 1500 kg is gliding through space to the right (along the x-axis) with a velocity of 125 m/s. A second space craft of mass 700 kg is traveling "upwards" and to the right with a speed of 50 m/s so that its trajectory makes an angle of 35 with respect to the y-axis. The two space craft collide and stick together. a) Calculate the final magnitude and direction of the velocity of the two crashed space crafts. b) What is the change in the kinetic energy of the system due to the collision?