In a planetary system, p-h-y- s-i-c-x, located on the Milktea Way galaxy, seven iden- tical planets with mass m were observed which follows the configuration shown in the figure. Assuming that the given distances are from the center of each planet, what is the magnitude of the net gravitational force on planet y due to all the masses? aV5 P. a A. (3 – ) B. Q (3 + +) Gm² C. 2Gm? a a Gm² В. a2 D. 3GM² a²
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