Please help me!

1. A baseball thrown at an angle of 60.0 degrees above the horizontal strikes a building 17.0 mm away at a point 6.00 mm above the point from which it is thrown. Ignore air resistance. The magnitude of the initial velocity of the baseball (the velocity with which the baseball is thrown) is 15.6 m/s

a) Find the magnitude of the velocity of the baseball just before it strikes the building.

b) Find the direction of the velocity of the baseball just before it strikes the building.

2. A firefighting crew uses a water cannon that shoots water at 29.0 m/sm/s at a fixed angle of 50.0 above the horizontal. The firefighters want to direct the water at a blaze that is 10.0 mm above ground level.

How far from the building should they position their cannon? There are two possibilities (d1