Determine the unknown velocity value

For Questions #1-#5, determine the unknown velocity value. Assume that the collisions occur in an isolated system. Before Collision After Collision = 10m/'s v= 4m/'s V= 10m/s m= 6kg m= 4kg m= 6kg m= 4kg 2. Before Collision After Collision =8m/s V=5m/'s V=??? m=4kg m= 2kg m= 4kg m= 2kg 3. Before Collision After Collision =8m/'s v=6m/s =2m/S V= ?? m= 3 kg m= 2kg m= 3kg m=2kg 4. Before Collision After Collision = 10m/s v=12m/s V= 2m/s V=??? m=4kg m= 3 kg m=4kg m= 3kg 5. Before Collision After Collision V= 12m/'s v=10m/s V= Am/s iti=A m= 4kg m= 3 kg m= 4kg m= 3 kg