A (non-rotating) star collapses onto its...

A (non-rotating) star collapses onto itself from an initial radius `R_i`, its mass remaining unchanged. Which curve in the figure best gives the gravitational acceleration `a_g`, on the surface of the star as a function of radius of star during collapse?

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A (non-rotating) star collapses onto itself from an initial radius R, its mass remaining unchanged. Which curve in the figure best gives the gravitational acceleration ag on the surface of the star as a function of radius of star during collapse?

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