All Questions
7
questions
0
votes
1
answer
47
views
How we will choose reference point for more than two particle system to calculate potential energy as in the case of of equilateral triangle?
Suppose there are three mass, $m_1$, $m_2$, $m_3$. In the case of equilateral triangle we bring $m_1$ which has zero potential energy then we bring $m_2$ and consider $m_1$ and $m_2$ as one pair and ...
- 121
0
votes
2
answers
451
views
Gravitational potential in a system of two particles
Suppose two particles with masses $m_1$ and $m_2$ are interacting via a central force. Lets work in the center-of-mass frame, and let $r$ be the distance from the masses to the center of mass which ...
- 273
3
votes
4
answers
2k
views
Gravitational potential energy of a two-body system
We say the gravitational PE of a system is $-GMm/r$. This is for a constant gravitational field. But, when we try to calculate PE for a two-body system, the distance the body moves is not the same as ...
0
votes
1
answer
1k
views
Reference Point and Change in Potential Energy
Okay so I am VERY confused. Everything online is telling me that I can choose any reference point for potential being zero and still get a consistent result for potential difference HOWEVER I have ...
- 43
2
votes
2
answers
2k
views
Is a *difference* of potential energy relative to a frame of reference?
If we consider an electrical field, or a gravitational field, and two points in this field, is the difference of potential between this two points depending of a frame of reference ?
It seems to me ...
- 55
1
vote
1
answer
71
views
Gravitational potential energy with both bodies moving [closed]
When deducing the formula for the gravitational potential energy of one body in relation to the gravitational force of another body, my teacher assumed that one body was standing still. I tried ...
- 13
-2
votes
2
answers
217
views
Gravitational potential energy in CM frame
If the centre of mass is taken as the origin, then the gravitational potential energy of two bodies is
\begin{equation}
V=-\frac{Gm_{1}m_{2}}{(r_{1}+r_{2})}
\end{equation}
where $r_{1}$ and $r_{2}$ ...
- 158