Physics for IGCSE & O level - Forces And Motion (Section 10 - No. 31)
What is the relationship between momentum and the law of conservation of momentum?
Momentum is always conserved.
Momentum is only conserved in the absence of external forces.
The law of conservation of momentum states that momentum cannot be created or destroyed but only transferred.
Momentum is never conserved.
Paliwanag
The law of conservation of momentum applies in the absence of external forces.