Gravitational Force of a Sphere with a Cavity
A spherical cavity of radius R/2 is carved from a uniform solid sphere of radius R and density ρ. The center of the cavity is located at a distance R/2 from the center of the original sphere. At what distance from the center of the original sphere is the net gravitational force on a test mass equal to zero?
A
At distance R from the center of the original sphere
B
At no point is the net force zero
C
At the center of the cavity
D
At the center of the original sphere
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