A0.30 kg mass is sliding on a horizontal, frictionless air track with a speed of 4.0 m/s when it instantaneously hits and sticks to a 2.0 kg mass initially at rest on the track. the spring constant is 100 n/m . the other end of the spring is fixed. a. determine the following for the 0.30 kg mass immediately before the impact: i. its linear momentum ii. its keb. determine the following for the combined masses immediately after the impact: i. the linear momentum in. the kec. besides the fact that the objects stick together, what other clue lets you know that this was an inelastic collision

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.