Question

One object is at rest, and another is moving. The two collide in aone-dimensional, completely inelastic collision. In other words,they stick together after the collision and move off with a commonvelocity. Momentum is conserved. The speed of the object that ismoving initially is 26 m/s. The masses of the two objects are 2.8and 8.3 kg. Determine the final speed of the two-object systemafter the collision for the case (a) when the large-mass object isthe one moving initially and the case (b) when the small-massobject is the one moving initially.
(a) vf = 1 2 ---Select--- kg · m kg · m^2 m/s^2 m/s
(b) vf = 3