Two 4.4 kg bodies, A and B, collide. The velocities before the collision are A = (12 + 46) m/s and B = (-32 + 22) m/s. After the collision, 'A = (-16 + 30) m/s. What are
(a) the x-component and
(b) the y-component of the final velocity of B?
(c) What is the change in the total kinetic energy (including sign)?