A gull is flying horizontally 8.00 m above the ground at 6.00 m/s. The bird is carrying

Question:

A gull is flying horizontally 8.00 m above the ground at 6.00 m/s. The bird is carrying a clam in its beak and plans to crack the clamshell by dropping it on some rocks below. Ignoring air resistance,
(a) What is the horizontal distance to the rocks at the moment that the gull should let go of the clam?
(b) With what speed relative to the rocks does the clam smash into the rocks?
(c) With what speed relative to the gull does the clam smash into the rocks?