A ballistic pendulum consists of a chunk of clay suspended from a rope. When a bullet is fired into the clay it sticks causing the clay to swing. This is an example of a totally inelastic collision. If the velocity of the pendulum after the collision can be measured, then the Law of Conservation of Momentum can be used to calculate how fast the bullet was traveling before the collision. A 0.04 kg bullet collides collides inelastically with a 0.8 kg ballistic pendulum. Before the collision the pendulum was at rest but immediately after the collision the pendulum is moving with speed of 13.6 m/s. How fast was the bullet traveling before the collision?