x.html?launchid=72d69e31-dac7-40c7-bf3d-f4eb8cec985d#/question/3 Question 4 of 6 View Policies Show Attempt History Current Attempt in Progress Your answer is partially correct. One object is at rest, and another is moving. The two collide in a one-dimensional, completely inelastic collision. In other words, they stick together after the collision and move off with a common velocity. Momentum is conserved. The speed of the object that is moving initially is 25 m/s. The masses of the two objects are 2.8 and 7.7 kg. Determine the final speed of the two-object system after the collision for the case (a) when the large-mass object is the one moving initially and the case (b) when the small-mass object is the one moving initially. (a) v = (b) vf = i 6.7 18.3 eTextbook and Media GO Tutorial Open in new window Save for Later X m/s m/s 0.55/1 E E : 2 Assistance Used Attempts: 3 of 4 used Submit