Merry Go Round#
Emilia starts standing on the outer edge of a merry-go-round that is rotating at an angular velocity of \(\omega_0\). Emilia then starts walking towards the center, to the inside portion of the merry-go-round. You may assume the merry-go-round is rotating without friction.
An image of a merry-go-round (courtesy of Narelle Steckyj from Pixabay) is shown below.
Which of the following statement about the angular velocity of the merry-go-round is correct ?
The merry-go-round’s moment of inertia is increasing.
Angular momentum is conserved.
The merry-go-round’s moment of inertia is decreasing.
The merry-go-round’s moment of inertia stays the same
Angular momentum is not conserved.
Which of the following choices are correct (select all that apply) after Emilia starts walking inwards on the merry-go-round?