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The mass has a fundamental property and that is like a battery that can be filled with the charge and become a container of energy, mass by virtue of its inertia can accept the work of a force F moving it and store that work by accelerating and becoming a container of energy. Say a ball with mass m is moving horizontally in space with a velocity v. what do ...

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@JonathonRSwift provided a good analogy for momentum using a rugby player or a child running at and into you. The rugby player would likely bowl you over while a child even moving at twice the speed would likely bounce off. Another example would be a child hitting your hand with a (blow molded/hollow) plastic hammer compared to that of a real hammer being ...

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Momentum is a way we can measure mass that is in motion. Any object that is moving has momentum. The momentum $p$ of an object is equal to the mass $m$ times the velocity $v$. $$\vec{p} = m \cdot \vec{v}$$ (As a consequence of Newton's laws,) Momentum is directly proportional to the force required to stop a moving object (or in general change its velocity). ...

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