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TS656577
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Homework Statement
One dimension. In Fig. 13-33, two point particles are fixed on an x-axis separated by distance d. Particle A has mass mA and particle B has mass 7.00 mA. A third particle C, of mass 75.0 mA, is to be placed on the x-axis and near particles A and B. In terms of distance d, at what x coordinate should C be placed so that the net gravitational force on particle A from particles B and C is zero?
Homework Equations
F=sqrt((GMm)/r^2) Where G=6.67E-11
The Attempt at a Solution
I know that M=75 and m=7. Multiplying that by 6.67E-11 I got 3.5E-8/r^2. If i set that equal to 0, then I the r to disappear