If someone could tell me step bey step how they got the answer it would be a really big help.
Fgrav= G*m1*m2/d^2
G=6.67*10^-11Nm^2/kg^2
Fgrav= G*m1*m2/d^2
G=6.67*10^-11Nm^2/kg^2
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the distance between their centers is 0.16m and I am assuming each grapefruit has a mass of 0.45kg
F = G m1 m2/r^2
F = 6.67x10^-11 x 0.45kg x0.45kg/(0.16m)^2
F = 5.3x10^-10N
F = G m1 m2/r^2
F = 6.67x10^-11 x 0.45kg x0.45kg/(0.16m)^2
F = 5.3x10^-10N