In a collision between a 1200kg car moving at 8m/s to the right and a 2000kg truck moving at 4m/s to the left, the car's post-collision velocity is 6m/s to the left. To find the truck's velocity after the collision, conservation of momentum must be applied, taking into account the initial and final velocities of both vehicles. Energy loss during the collision should also be considered, as it affects the final velocities. The discussion emphasizes the importance of attempting the problem before seeking help and calculating energy loss. Understanding these principles is crucial for solving collision-related physics problems effectively.
