Final answer:
Yes, objects in a system can have momentum while the momentum of the system is zero.
Step-by-step explanation:
Yes, objects in a system can have momentum while the momentum of the system is zero. Momentum is a vector quantity that depends on both the mass and velocity of an object.
In a system with multiple objects, the momentum of the system is the vector sum of the momenta of all the objects in the system. If the individual momenta of the objects cancel each other out, the net momentum of the system can be zero even if some objects still have individual momenta.
For example, imagine two objects with equal and opposite momenta colliding. The momenta of the two objects would cancel each other out, resulting in a system with zero momentum. However, the individual objects still have their own momenta, just in opposite directions.
So, while the momentum of the system can be zero, the objects within the system can still have momentum.