A rock is launched from a 150m tall building, with an initial velocity of 20ms, 25 degrees above horizontal; u = 20 m/s 250 1 h = 150 m a) How high above the building does the ball travel? b) What is the total time of flight? c) How far from the base of the building does the ball travel horizontally? A projectile is launched from a position x = 0, y = 0. It reaches it's maximum height at the position x = 23, y = 19.6. What was the initial velocity (magnitude and direction) of the projectile? (You require no additional information)