You throw a 1kg ball out of a window 12 meters above the ground with horizontal speed. It lands on the ground 5 meters from the building after 1 second. Ignore air resistance, A) How fast did you throw the ball? B) What was the ball's initial velocity? C) How fast was it traveling when it hits the ground?
The question is flawed. it cannot fall 12 m in one second.
12= 1/2 g t^2 in the vertical. It does not compute.