Question

What is momentum? I can't understand definition

Answer 1

Momentum can be defined as "mass in motion." All objects have mass; so if an object is moving, then it has momentum - it has its mass in motion.


I will tell you in simple way for understanding,
Momentum can be considered the "power" when an object is moving, meaning how much force it can have on another object. For example, a bowling ball (large mass) moving very slowly (low velocity) can have the same momentum as a baseball (small mass) that is thrown fast (high velocity). Because momentum is the product of the mass and the velocity of an object. A bullet is another example where the momentum is very-very high, due to the extraordinary velocity. Another beautiful example where very low-velocities cause greater momentum is the push of Indian subcontinent towards the rest of Asia, causing serious damages, such as earth quakes in the portions of himalayas. In this example, the subcontinent is moving as slow as few inches per year but the mass (imagine weight of India) of Indian-subcontinent is very high....

I hope you have understood what is momentum now..
Mathematically it is given as
P=mv (mass * velocity)