A 1.40 kilogram ball, moving to the right at a velocity of +1.04 meter per second on a frictionless table, collides head-on with a stationary 7.90-kg ball. Obtain the final velocities of
(a) the 1.40 kg ball and
(b) the 7.90 kilogram ball if the collision is elastic.
(c) Obtain the magnitude and direction of the final velocity of the two balls if the collision is completely inelastic.