. A golfer hits a golf ball down a level fairway. The initial velocity of the golf ball is 50.0 m/s at 30.0 degrees above the horizontal. Helpful hint: in this problem, v_iy = - v_fy. Ignore air resistance.

A. What external forces on the mailbag (forces on the mailbag from outside the mailbag) exist? (1 point)

1. Weight only
2. Weight and other external force
3. No external forces at all

B. How long is the ball in flight? (List all your equations here (there are 4), highlighting what you know by circling and what you want by inscribing in a square, then solve the problem.