WILL THE OBJECT REMAIN STUCK????

Asked by  | 1st Mar, 2012, 10:09: AM

Expert Answer:

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

Answered by  | 2nd Mar, 2012, 10:05: AM

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