Question

A cart carrying a vertical missile launcher moves horizontally at a constant velocity of 30.0 m/s to the right. It launches a rocket vertically upward. The missile has an initial vertical velocity of 40.0 m/s relative to the cart.
a) How high does the rocket go?
b) How far does the cart travel while the rocket is in the air?
c) Where does the rocket land relative to the cart? (in front,behind or on it)