At t = 0s, a ball is launched straight upward with a velocity of 19.6 m/s. The ball
slows with constant acceleration until it stops at t = 2.00 s. The ball falls back to
the ground with the same acceleration until it hits the ground with velocity
-19.6 m/s at t = 4.00 s. What is the ball's total displacement after 2.00 s? What is
the ball's acceleration during its entire motion?