Problem D12: A child of mass m is sitting on a cylindrical merry-go-round,
which has a mass of n_{1}m. The radius of the merry-go-round is
R. Initially, the child is sitting a distance R/n_{2} from the
center, and both child and merry-go-round are at rest. Then, the child
jumps off in a direction perpendicular to the radius. If the speed
of the child with respect to the gound is v, what is the final angular
velocity ω of the merry-go-round? If ω=v/(R n_{3})
What is n_{3}? Note that
n_{1}, n_{2}, and n_{3} are unitless. Assume
that the merry-go-round is a cylindrical disk.

If you are currently in my class, you can record your grade by entering your name and student ID
number (without the leading zeros) below and clicking on "record grade".