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#1022. Point position given center of mass Three point masses have position vectors and masses given by: m? = 5 kg $\vec{r}_1$ = -6$\hat{i}$ - 8$\hat{j}$ m m? = 9 kg $\vec{r}_2$ = -3$\hat{i}$ + 3$\hat{j}$ m m? = 3 kg $\vec{r}_3$ = unknown m The center of mass has position vector $\vec{r}_C$ = $\hat{i}$ - 4$\hat{j}$ m. Matlab/Octave Mathematica Python R SymPy from sympy import * m1 = 5 m2 = 9 m3 = 3 r1 = Matrix([-6, -8, 0]) r2 = Matrix([-3, 3, 0]) rC = Matrix([1, -4, 0]) copy this text What is the position vector $\vec{r}_3$ of m?? $\vec{r}_3$ = $\hat{i}$ + $\hat{j}$ m

          #1022. Point position given center of mass
Three point masses have position vectors and masses given by:
m? = 5 kg  $\vec{r}_1$ = -6$\hat{i}$ - 8$\hat{j}$ m
m? = 9 kg  $\vec{r}_2$ = -3$\hat{i}$ + 3$\hat{j}$ m
m? = 3 kg  $\vec{r}_3$ = unknown m
The center of mass has position vector $\vec{r}_C$ = $\hat{i}$ - 4$\hat{j}$ m.
Matlab/Octave Mathematica Python R SymPy
from sympy import *
m1 = 5
m2 = 9
m3 = 3
r1 = Matrix([-6, -8, 0])
r2 = Matrix([-3, 3, 0])
rC = Matrix([1, -4, 0])
copy this text
What is the position vector $\vec{r}_3$ of m??
$\vec{r}_3$ =  $\hat{i}$ +  $\hat{j}$ m

#1022. Point position given center of mass
Three point masses have position vectors and masses given by:
m? = 5 kg r⃗1 = -6î - 8ĵ m
m? = 9 kg r⃗2 = -3î + 3ĵ m
m? = 3 kg r⃗3 = unknown m
The center of mass has position vector r⃗C = î - 4ĵ m.
Matlab/Octave Mathematica Python R SymPy
from sympy import *
m1 = 5
m2 = 9
m3 = 3
r1 = Matrix([-6, -8, 0])
r2 = Matrix([-3, 3, 0])
rC = Matrix([1, -4, 0])
copy this text
What is the position vector r⃗3 of m??
r⃗3 = î + ĵ m

Added by Monique S.

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