1. A 92 kg boulder , moving at 5.0 m/s attempts to pass directly across the adit of a mine. Just as the boulder reaches the end of the adit, it was met head- on in mid air by two 75 kg miners, both moving in the direction opposite the boulder. One is moving 2.0 mis, the other at 3.0 m/s . They all become entangled as one mass . What is their velocity after the collision ? 2. What is the momentum of a 18 kg object traveling at a constant velocity that has 295 J of kinetic energy