EXAM 1 Problem 1: A student standing at the edge of a tall building throws a ball horizontally, with an initial velocity vo= 30 m/'s. The object falls to the ground at a distance x from the building. Calculate the x and y coordinates of the object after 1.5 seconds. b) If the building is 50 m height, after how long time the object will hit the ground? Calculate the distance X. d) Calculate the object' velocity just before hitting the ground, and the angle between the vector velocity and the horizontal