From Mechanics
(diff) ←Older revision | Current revision (diff) | Newer revision→ (diff)
No change because the mass cancels out in all of the equations. For example in part b):
\displaystyle \begin{align}
& mr{{\omega }^{2}}=\mu mg \\
& r=\frac{\mu g}{{{\omega }^{2}}}
\end{align}