Determine the total kinetic energy before and after the collision

For Questions #6-#8, determine the total kinetic energy of the system before and after the collision and identify the collision as being either perfectly elastic, partially inelastic/elastic or perfectly inelastic. Before Collision After Collision v=5m/'s O V=5m/s m= 4kg m= 4kg m= 4kg m= 4kg At Rest At Rest Total System Kinetic Energy Before Collision: Total System Kinetic Energy After Collision: Perfectly Elastic, Partially Inelastic/Elastic or Perfectly Inelastic? 7. Before Collision After Collision V=4m/s v=2m/'s V=2m/s m= 4kg m= 2kg m= 4kg m= 2kg Total System Kinetic Energy Before Collision: Total System Kinetic Energy After Collision: Perfectly Elastic, Partially Inelastic/Elastic or Perfectly Inelastic? Before Collision After Collision V=6m/s V=1m/s V=3m/'s v=6m/s m =10 kg m= 6kg m= 10 kg m= 6kg Total System Kinetic Energy Before Collision: Total System Kinetic Energy After Collision: Perfectly Elastic, Partially Inelastic/Elastic or Perfectly Inelastic