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I am trying to remember a formula that a part of it, is the fraction:
(m1*m2)/(m1+m2),
where m1 and m2 are the masses of two bodies.
I must say, I am not sure if such a formula exist.
Thanks.
Gravitational Force between 2 objects? gForce = (GRAVITY * (mass1 * mass2) / (dist*dist))
Sorry, no. In the denominator of the gravity formula , there is distance^2
In the formula I search, it should be (m1+m2)
Suppose you have two masses, m1 and m2 separated by distance d. Say that the centroid of the two masses is x from mass m1.
x = m2*d/(m1 + m2)
m1*x = m1*m2*d/(m1 + m2)
m1*x/d = m1*m2/(m1 + m2)
x/d is dimensionless, so the expression has units of mass. It represents the moment of either mass m1 or m2 about the centroid when d = 1.
Thanks ba/ael.
This is what I was looking for.
It represents the moment of either mass m1 or m2 about the centroid when d = 1.
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