16. Angular Momentum
Conservation of Angular Momentum
19PRACTICE PROBLEM
At t = 0, a merry-go-round of mass m and radius r rotates horizontally at an angular velocity of ωi about a perpendicular axis through its center. A child at the edge of it begins moving toward the center in a straight line at the same time with a constant speed of vo with respect to the merry-go-round. Given that the mass of the child is M, express the angular velocity of the merry-go-round as a function of time assuming that there is no friction and that the merry-go-round is a thin cylinder.
At t = 0, a merry-go-round of mass m and radius r rotates horizontally at an angular velocity of ωi about a perpendicular axis through its center. A child at the edge of it begins moving toward the center in a straight line at the same time with a constant speed of vo with respect to the merry-go-round. Given that the mass of the child is M, express the angular velocity of the merry-go-round as a function of time assuming that there is no friction and that the merry-go-round is a thin cylinder.