A ball is thrown leftward from the left edge of the roof of a building at height h above the ground. The ball hits the ground 1.50s later, at distance d=25.0m from the building and at angle theta = 60 degrees with the horizontal. A) Find h. What are the (b) magnitude and (c) angle relative to the horizontal of the velocity at which the ball is thrown? I figured that initial velocity in X direction is 16.67 m/s (25 meters/1.5 seconds). What is really giving me trouble is finding the magnitude of the velocity. I can't figure out how to find the Y component of the velocity to get it. I'm not even sure what B and C want, but I figure i'll cross that bridge after I get A handled.