r cube is directly propotional to t square how? and why?

Asked by  | 19th Aug, 2008, 12:35: PM

Expert Answer:

Considering a satelite in a circular orbit,centripetal acceleration=GM/r2 =v2 /r

v=(GM/r)0.5

Using,t=2(pie)r/v

t=k(r)3/2 ,k being constant

hence

t2 =k r3 ,Hence ris directly proprtional to t2

Answered by  | 19th Aug, 2008, 06:41: PM

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