(Solved): d) a) A child is on the edge of a frictionless merry-go-round, which has twice his mass. Initially ...

d) a) A child is on the edge of a frictionless merry-go-round, which has twice his mass. Initially, she and the merry-go-round are not moving. At some point, she starts to run clockwise. Draw an angular momentum bar chart for this process. Also draw angular momentum bar charts for the sub-systems. Comment on which will have the larger angular velocity, the child or the merry-goround. Discuss whether energy is constant or not. Briefly explain your reasoning.