Do we need to have two objects two have momentum?

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Momentum is a property of any object, defined as its tendency to maintain its current motion, similar to inertia. Every object possesses momentum, which is quantitatively calculated as the product of its mass and velocity (p = mv). Inertia is often equated with mass and is more qualitative, while momentum has a precise mathematical definition. Understanding the distinction between these concepts is crucial for solving physics problems effectively. Clear comprehension of momentum and inertia is essential for accurate application in scientific contexts.
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Do we need to have two objects two have mometum?
I am just confused. Hope someone helps
 
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No. Any and every object has momentum.

Momentum is basically them same as inertia: on objects tendency to maintain its current motion (or its resistance to changing that motion).

Are there any more specific questions or point-of-confusion that you have?
 


zhermes said:
No. Any and every object has momentum.

Momentum is basically them same as inertia: on objects tendency to maintain its current motion (or its resistance to changing that motion).

Are there any more specific questions or point-of-confusion that you have?


tx a lot got it, was just confused with the term.
Now 1 more question can we figure out an objects momentum and its inertia?
 


The two are synonyms, however momentum also means a quantitative value which is the objects mass times its velocity.

p = mv

Inertia is more qualitative, though it is sometimes just equated with mass.
 


I advise you to NOT mix your non scientific intuition about ideas like "momentum", "inertia" and later "Work" - they have precise mathematical a physical definition which you need to know WELL in order to use these ideas to solving problems.
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
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