Trace... 4) Popcorn poppers work by blowing hot air through a grate at the bottom of a cylinder filled with popcorn kernels. The kernels fly around until they reach a critical temperature and pop. One kernel is moving with velocity J = 0.2mi + 0.8my immediately before popping, and when it pops, a piece breaks off. The two pieces have velocities v1 = 1mj and v2 = 0.25mi+0.75mj. What is the ratio of the masses of the two pieces? (5 points) V = 0 . 2 m i + 0.8"; V V , = 0. 25 5 3 + 0. 75 m d