To protect their young in the nest, peregrine falcons will fly into birds of prey (such as ravens) at high speed. Assume that a 600g falcon flying at 20.0 m/s hit a 1.50 kg falcon flying at 9.0 m/s. The falcon hit the raven at right angles to its original path and bounced back at 5.0 m/s.
(a) By what angle did the falcon change the raven's direction of motion?
(b) What was the raven's speed right after the collision?