A 0.520 kg ball of Play-Doh hangs from the ceiling by a string. A 0.0850 kg wad of Play-Doh is thrown straight upward from below the ball and strikes the ball with a speed of 5.60 m/s and sticks to it.
(a) Is the mechanical energy of this system conserved?
(b) How high (in cm) does the combined mass of Play-Doh rise above the original position of the ball of Play-Doh?