Question

A bowling ball (mass = 7.2 kg, radius = 0.12 m) and a billiard ball (mass = 0.31 kg, radius = 0.028 m) may each be treated as uniform spheres. What is the magnitude of the maximum gravitational force that each can exert on the other?

Answer 1

That would be when they are in contact, with the centers separated by a distance
d = r1 + r2 = 0.148 m

For that separation,

F = G m1*m2/d^2

where G is the universal constant of gravity,
G = 6.67*10^-11 N*m^2/kg^2

Answer 2

good i get it,it seem difficult but not

Answer 3

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