- #1
UniBoy5
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Homework Statement
Consider a planet with uniform mass density p. If the planet rotates too fast, it will fly apart. Show that the minimum period of rotation is given by
T^2 = 3(pie)/Gp
Homework Equations
F = ma = Gm1m2/R^2 (Equation 1)
a = v^2/R (Equation 2)
v= 2(pie)R/T (Equation 3)
m= (4/3(pie)R^3)p
The Attempt at a Solution
I tried putting equation 2 into equation 1. I only included the mass of the planet (m). I don't know if this is right. After finding v, I solved for T^2. My answer was not correct. Please help, thanks!