What am I doing wrong... I am getting 32 degrees for the direction. I solved # 1

Question

What am I doing wrong...

I am getting 32 degrees for the direction. I solved # 1 i just need # 2..

What am I doing wrong... I am getting 32 degrees for the direction. I solved # 1 i just need # 2.. What is the magnitude of the resultant force (caused by the other two masses) on the mass at the origin? The universal gravitational constant is 6.6726 times 10-11 N m2/kg2. Answer in units of N At what angel from the positive x-axis will the resultant force point? Let counterclockwise be positive, within the limits - 180 degree to 180 degree. Answer in units of rho

Explanation / Answer

F = G*m1*m2/r^2 F1 = force b/w mass at origin & the mass at 58 cm from it F2 = force b/w mass at origin & the mass at 47 cm from it since all the masses are equal, ratio of the two forces caused by two masses at the origin; => F1/F2 = (r2/r1)^2 = (47/58)^2 => F1/F2 = 0.6567 angle made by resultant force with positive x-axis = tan^-1(F1/F2) = tan^-1(0.6567) = 33.29 degrees (anticlockwise) = 33.29 degrees

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