A volleyball with mass m _{V B} = 0.270kg is thrown so that it hits a basketball with mass m _BB in an elastic collision. Immediately prior to the collision, the volleyball is moving horizontally with a speed v _{V B,i} = 24.1m/s, and immediately after the collision the it is moving straight downward with speed v _{V B,f} = 15.2m/s. The basketball is at rest immediately prior to the impact.

(a) What is the momentum vector of the basketball immediately after the collision? Give your answer in component (i.e., unit vector) form. (b) At what angle will the basketball be moving above or below the horizontal immediately after the collision?

(c) What is the kinetic energy of the basketball immediately after the collision? (d) Find the mass of the basketball and its speed after the collision.