TFbp05
An orange is thrown up from the top of a building. It travels up
and back passing the top edge of the building and passes a point 20 m below the top of the
building 4.0 s after leaving the thrower's hand. What is the initial speed of the orange,
and how high does it rise above the top of the building?
Draw a diagram of the problem with the orange initially at the origin.
Be careful with the coordinate system. Set 0 where the orange
starts the motion and measure x positive down.
