Problem $4$: $(20\%$ of Assignment Value$)$

Three children are riding on the edge of a merry$-$go$-$round that is a disk of mass $94$ kg $,$ radius $1\mathrm{.}4$ m $,$ and is spinning at $21$ rpm $.$ The children have masses of $23\mathrm{.}2$ kg $,29\mathrm{.}2$ kg $,$ and $35$ kg $.$

Randomized Variables

$M=94kg$

$m_1=23\mathrm{.}2kg$

$m_2=29\mathrm{.}2kg$

$m_3=35kg$

$r=1\mathrm{.}4m$

$f=21rpm$

If the child who has a mass of $29\mathrm{.}2$ kg moves to the center of the merry$-$go$-$round, what is the new magnitude of angular velocity in rpm$?$

Grade Summary

$f^{\text{'}}=$

Deductions

$0\%$

Potential $,100\%$