We'll use newton's law of gravity:
Gravitational force due to the 4m mass:
F4m = G(m)(4m)/(y0)2 = 4Gm2/y02 j
Four masses are arranged as shown in Fig. 4.1 Determine the x- and y-components of the gravitational force on the mass at the origin (m). Write the force in vector notation (i, j).
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