Question
Thu March 01, 2012 By:

WILL THE OBJECT REMAIN STUCK????

Expert Reply
Fri March 02, 2012
Yes, a body get stuck to the surface of the star if the inward gravitational force is greater than the outward centrifugal force caused by the rotation of the star. Gravitational Force fg = GM/R2 M = 2.5 * 2 * 1030 kg R =12 km = 1.2 * 104 fg = 2.31 * 1011 m N Centrifugal w= 2?v v =1.2 rev/s fc = mR (2?v)2 fc = m * (1.2 * 104) *(3.14)2 *(1.2)2 = 1.7 * 105 mN Since fg > fc so body will remain stuck to the surface of the star
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