A ball rolls down a roof that makes an angle of 30 degrees to the horizontal. It rolls off the edge with a speed of 5m/s. The distance to the ground from that point is two stories or 7m. (a.) How long is the ball in the air? (b) How far from the base of the house does it land? (c) What is its speed just before landing? I figured (a) is 1.2s and (b) is 6 meters (hopefully i'm correct) how do I figure out (c)? Thanks!