In the ballistic pendulum experiment (A.K.A conservation of momentum & energy), the velocity of the projectile was measured and recorded (vo = 6 m/s). The mass of the projectile was 20 g and the ballistic pendulum mass was 128 g. After the projectile is fired, it hits the ballistic pendulum, and both moved with velocity v. Calculate the velocity v of the projectile and the pendulum after the collision.