A ball is thrown horizontal from the top of a 60.0-m building and lands 100.0 m from the the base of the building. Ignore air resistance. (a) how long is the ball in the air? (b) what must have been initial horizontal component of the velocity? (c) what is the vertical component of the velocity just before the ball hits the ground? (d) what is the velocity (including both the horizontal and vertical components) of the ball just before it hits the ground?
