You are leaning out of your window 12 m above the ground and toss a 0.12 kg ball to a friend who is 11 m above you. What is the slowest speed you can throw the ball and have your friend just catch it? If your friend misses the catch, what is the kinetic energy of the ball right before it hits the ground? What would the kinetic energy be just before it hit the ground if you threw it downward with the same speed you threw it to your friend?