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threewingedfury · 02-13-2006, 08:10 PM

In Figure 13-34, a square of edge length 19.0 cm is formed by four spheres of masses m1= 6.00g, m2= 4.00 g, m3= 1.00 g, and m4= 6.00 g. In unit-vector notation, what is the net gravitational force from them on a central sphere with mass m5= 2.50 g?

All of the masses are the same distance from m5, and the distance is d= 13.44 cm 0.1344 m.

How exactly can come up with whats in the bold? This is an example of a problem I have to do, and I know how to work it, I just can't figure out how they found this distance. Is there a certain equation for this?

Thanks in advance

02-13-2006, 08:10 PM	#1 (permalink)
threewingedfury Upright	physics problem In Figure 13-34, a square of edge length 19.0 cm is formed by four spheres of masses m1= 6.00g, m2= 4.00 g, m3= 1.00 g, and m4= 6.00 g. In unit-vector notation, what is the net gravitational force from them on a central sphere with mass m5= 2.50 g? All of the masses are the same distance from m5, and the distance is d= 13.44 cm 0.1344 m. How exactly can come up with whats in the bold? This is an example of a problem I have to do, and I know how to work it, I just can't figure out how they found this distance. Is there a certain equation for this? Thanks in advance Last edited by threewingedfury; 02-13-2006 at 09:36 PM..