Collar B is at rest on a smooth horizontal guide when it is impacted by an identical colla...

Collar B is at rest on a smooth horizontal guide when it is impacted by an identical collar A traveling at a speed v0 = 12 ft/s. The collars are designed to lock onto each other on impact, so A and B travel together after impact. Neglecting friction, determine the common velocity of A and B after impact.

Figure P5.35