|Class 11 Physics Laws of Motion||Momentum|
Newton’s first law was for scenarios where net force = 0. The second law is for scenarios with net force not equal to 0. Momentum plays a crucial role in Second law.
For example, A ball of 1 kg moving with 10m/sec has a momentum 10kg m/sec.
Momentum of a system remains conserved. Therefore,
Conclusion: Greater the change in momentum in a given time, greater is the force that needs to be applied. In other words, greater the change in momentum vector, greater is the force applied.