One of the object is at rest and the other is moving. The two collide in a one dimensional, fully inelastic collision. In another words, they stick altogether after the collision and move off with a common velocity. The momentum is conserved. The speed of the object which is moving at first is 25 m/s. The masses of the two objects are 3.0 and 8.0 kg. Find out the final speed of the two-object system after the collision from the case if the large-mass object is the one moving at first and the case when the small-mass object is the one moving primarily.