A Ping-Pong ball has a diameter of 4.0 cm and a mass of 2.47 g. Assume the density of air is 1.22 kg/m3.
a) What is the terminal velocity of the ball?
b) If the ball were launched upward at twice its terminal speed, what would its acceleration be at
that moment?
c) If the ball were launched downward at twice its terminal speed, what would its acceleration be at that moment?